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 | 3 |
| 3 | 4 |
| 4 | 30 |
| 5 | 12 |
| 6 | 84 |
| 7 | 4 |
| 8 | 15 |
| 9 | 10 |
| 10 | 22 |
| 11 | 3 |
| 12 | 455 |
| 13 | 105 |
| 14 | 1 |
| 15 | 48 |
| 16 | 510 |
| 17 | 36 |
| 18 | 2660 |
| 19 | 168 |
| 20 | 660 |
| 21 | 1320 |
| 22 | 184 |
| 23 | 720 |
| 24 | 27300 |
| 25 | 6552 |
| 26 | 216 |
| 27 | 16 |
| 28 | 3480 |
| 29 | 240 |
| 30 | 114576 |
| 31 | 176 |
| 32 | 5355 |
| 33 | 3570 |
| 34 | 126 |
| 35 | 6 |
| 36 | 959595 |
| 37 | 10374 |
| 38 | 630 |
| 39 | 840 |