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 | 9 |
| 5 | 1 |
| 6 | 1 |
| 7 | 73 |
| 8 | 73 |
| 9 | 1 |
| 10 | 1 |
| 11 | 585 |
| 12 | 4745 |
| 13 | 585 |
| 14 | 1 |
| 15 | 1 |
| 16 | 4681 |
| 17 | 304265 |
| 18 | 304265 |
| 19 | 4681 |
| 20 | 1 |
| 21 | 1 |
| 22 | 37449 |
| 23 | 19477641 |
| 24 | 156087945 |
| 25 | 19477641 |
| 26 | 37449 |
| 27 | 1 |
| 28 | 1 |
| 29 | 299593 |
| 30 | 1246606473 |
| 31 | 79936505481 |
| 32 | 79936505481 |
| 33 | 1246606473 |
| 34 | 299593 |
| 35 | 1 |