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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 60 |
| 5 | 73 |
| 6 | 357 |
| 7 | 690 |
| 8 | 970 |
| 9 | 1560 |
| 10 | 1844 |
| 11 | 2016 |
| 12 | 2071 |
| 13 | 3267 |
| 14 | 7034 |
| 15 | 22388 |
| 16 | 37244 |
| 17 | 137166 |
| 18 | 808334 |
| 19 | 1126996 |
| 20 | 3420839 |
| 21 | 4971830 |
| 22 | 14647946 |
| 23 | 15553569 |
| 24 | 21957090 |
| 25 | 31327140 |
| 26 | 90514444 |
| 27 | 98576118 |
| 28 | 204198604 |
| 29 | 210662116 |
| 30 | 553825420 |
| 31 | 1395717645 |
| 32 | 2820805440 |
| 33 | 6780317160 |