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 | 3 |
| 2 | 1 |
| 3 | 9 |
| 4 | 22 |
| 5 | 1 |
| 6 | 27 |
| 7 | 235 |
| 8 | 121 |
| 9 | 1 |
| 10 | 81 |
| 11 | 1996 |
| 12 | 3446 |
| 13 | 620 |
| 14 | 1 |
| 15 | 243 |
| 16 | 15349 |
| 17 | 63854 |
| 18 | 40314 |
| 19 | 3119 |
| 20 | 1 |
| 21 | 729 |
| 22 | 112546 |
| 23 | 963327 |
| 24 | 1434812 |
| 25 | 422087 |
| 26 | 15618 |
| 27 | 1 |
| 28 | 2187 |
| 29 | 806047 |
| 30 | 12960063 |
| 31 | 37898739 |
| 32 | 26672209 |
| 33 | 4157997 |
| 34 | 78117 |
| 35 | 1 |
| 36 | 6561 |
| 37 | 5705752 |
| 38 | 162711868 |
| 39 | 840642408 |
| 40 | 1151050534 |