# depths of OEIS

Published articles for depths of OEIS.

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## More whimsical OEIS sequences

DevFeed: [More whimsical OEIS sequences](<https://devfeed.tech/articles/more-whimsical-oeis-sequences-40522.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/shortform/2026-05-22-1528/>)

Published: 2026-05-22T22:28:34Z

Content type: opinion

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [Sequences](<https://devfeed.tech/topics/sequences.md>)

Tags: [depths-of-oeis](<https://devfeed.tech/tags/depths-of-oeis.md>), [doom](<https://devfeed.tech/tags/doom.md>), [oeis](<https://devfeed.tech/tags/oeis.md>), [sequences](<https://devfeed.tech/tags/sequences.md>), [shortform](<https://devfeed.tech/tags/shortform.md>), [xkcd](<https://devfeed.tech/tags/xkcd.md>)

### AI overview

An informal survey of whimsical OEIS sequences, including sequences inspired by XKCD, non-reduced fractions, hexadecimal patterns, James Bond primes, random tables, and references to the number 666.

### Source excerpt

Here are some more whimsical OEIS sequences I came across. XKCD 2016 joked that "OEIS keeps rejecting my submissions," including one that gives "Integers in increasing order of width when printed in Helvetica." Well, two days after that comic was published (2018-07-09), Hugo Pfoertner published A316600, with a very precise definition. Then he did Arial. Randall Munroe missed a huge opportunity to commit to his bit and actually try to submit some of his sequences before publishing the comic.

## Unusual uses of OEIS sequences on GitHub

DevFeed: [Unusual uses of OEIS sequences on GitHub](<https://devfeed.tech/articles/unusual-uses-of-oeis-sequences-on-github-40521.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/shortform/2026-04-13-0700/>)

Published: 2026-04-13T14:00:00Z

Content type: opinion

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [Sequences](<https://devfeed.tech/topics/sequences.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [Algorithms](<https://devfeed.tech/topics/algorithms.md>)

Tags: [algorithms](<https://devfeed.tech/tags/algorithms.md>), [code](<https://devfeed.tech/tags/code.md>), [coding](<https://devfeed.tech/tags/coding.md>), [depths-of-oeis](<https://devfeed.tech/tags/depths-of-oeis.md>), [github](<https://devfeed.tech/tags/github.md>), [oeis](<https://devfeed.tech/tags/oeis.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [sequences](<https://devfeed.tech/tags/sequences.md>), [shortform](<https://devfeed.tech/tags/shortform.md>)

### AI overview

The article surveys unusual uses of OEIS sequences in open-source software on GitHub. It describes their use in the Mercury and Ziffers live-coding music frameworks, the Plato e-reader's pen-size options, and the GC Wizard geocaching app.

### Source excerpt

I went hunting for references to the OEIS in open source code, and found some weird ones. There are not one, but two live-coding music frameworks that use OEIS sequences as a source for "anything that can be sequenced" in music. I'm guessing that's used for choosing pseudorandom melodies, interesting rhythyms, or how to overlap tracks in different ways. The first project is called mercury, which is advertised as having "an extensive library of algorithms to generate or transform numbersequences that can modulate parameters.

## The OEIS meta sequence and subway stations

DevFeed: [The OEIS meta sequence and subway stations](<https://devfeed.tech/articles/the-oeis-meta-sequence-and-subway-stations-40520.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/shortform/2026-04-09-0556/>)

Published: 2026-04-09T13:55:17Z

Content type: opinion

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [Sequences](<https://devfeed.tech/topics/sequences.md>), [math](<https://devfeed.tech/topics/math.md>), [Database](<https://devfeed.tech/topics/database.md>)

Tags: [database](<https://devfeed.tech/tags/database.md>), [depths-of-oeis](<https://devfeed.tech/tags/depths-of-oeis.md>), [new-york-city](<https://devfeed.tech/tags/new-york-city.md>), [numberphile](<https://devfeed.tech/tags/numberphile.md>), [oeis](<https://devfeed.tech/tags/oeis.md>), [quirk](<https://devfeed.tech/tags/quirk.md>), [sequence](<https://devfeed.tech/tags/sequence.md>), [sequences](<https://devfeed.tech/tags/sequences.md>), [shortform](<https://devfeed.tech/tags/shortform.md>), [train](<https://devfeed.tech/tags/train.md>)

### AI overview

This commentary examines OEIS sequence A051070, whose nth term is the nth entry of sequence A_n, or -1 when that sequence lacks enough terms. It highlights unusually large or unknown values, subway-stop sequences included in the OEIS, and self-referential questions involving A051070 and A102288.

### Source excerpt

A051070 is a sequence about OEIS sequences. a(n) is the n-th term in sequence A_n (or -1 if A_n doesn't have enough terms). So the first term in A051070 is 1 because A000001 is the number of groups of order n, and that sequence has 1 as its entry in index 1. A000002 is the Kolakoski sequence (what? For another time) and has value 2 in entry 2. The sequence continues: 1, 2, 1, 0, 2, 3, 0, 7, 8, 4, 63, 1, 316, ...