A developer searched GitHub for OEIS references in open source code and found music frameworks, an e-reader, and a geocaching app using integer sequences in unexpected ways.
Key Takeaways
Two live-coding music frameworks use OEIS sequences: mercury uses Fibonacci-family sequences (A000045, A000032, A000129); Sonic Pi extension ziffers adds Recaman’s, Thue-Morse, de Bruijn, and 10-adic expansions.
Ziffers includes sequences like A342585 (Inventory Sequence) that have no obvious musical rationale, raising questions about how the output actually sounds.
Kobo’s Plato e-reader uses A000041 (partition numbers) as pen size options, with no explanation left in the commit or PR.
GC Wizard, a geocaching offline tool, hardcodes many OEIS sequences to help solve in-field mystery caches, including the look-and-say sequence.
The author notes that pi-digit music tends to be underwhelming, questioning whether weirder sequences like the Inventory Sequence produce anything listenable.
