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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 6 |
| 5 | 36 |
| 6 | 37 |
| 7 | 260 |
| 8 | 1302 |
| 9 | 1376 |
| 10 | 1380 |
| 11 | 1381 |
| 12 | 1382 |
| 13 | 1556 |
| 14 | 1560 |
| 15 | 1561 |
| 16 | 1562 |
| 17 | 16932 |
| 18 | 562500 |
| 19 | 562501 |
| 20 | 562502 |
| 21 | 562506 |
| 22 | 562512 |
| 23 | 562536 |
| 24 | 562537 |
| 25 | 562752 |
| 26 | 562760 |
| 27 | 23610752 |
| 28 | 23610756 |
| 29 | 23610757 |
| 30 | 23610786 |
| 31 | 23615750 |
| 32 | 23615760 |
| 33 | 23615761 |
| 34 | 23615762 |
| 35 | 23615785 |
| 36 | 23615786 |
| 37 | 23626310 |