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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 13 |
| 5 | 1 |
| 6 | 1 |
| 7 | 157 |
| 8 | 157 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1885 |
| 12 | 22765 |
| 13 | 1885 |
| 14 | 1 |
| 15 | 1 |
| 16 | 22621 |
| 17 | 3280045 |
| 18 | 3280045 |
| 19 | 22621 |
| 20 | 1 |
| 21 | 1 |
| 22 | 271453 |
| 23 | 472349101 |
| 24 | 5671197805 |
| 25 | 472349101 |
| 26 | 271453 |
| 27 | 1 |
| 28 | 1 |
| 29 | 3257437 |
| 30 | 68018541997 |
| 31 | 9800302156141 |
| 32 | 9800302156141 |