This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
n | a(n) |
---|---|
1 | 10000 |
2 | 500110100015050 |
3 | 1001100150501100500110050011010001505015001001000115050111000150501001 |