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 | 6 |
| 3 | 1 |
| 4 | 30 |
| 5 | 12 |
| 6 | 1 |
| 7 | 135 |
| 8 | 96 |
| 9 | 18 |
| 10 | 1 |
| 11 | 567 |
| 12 | 630 |
| 13 | 198 |
| 14 | 24 |
| 15 | 1 |
| 16 | 2268 |
| 17 | 3654 |
| 18 | 1701 |
| 19 | 336 |
| 20 | 30 |
| 21 | 1 |
| 22 | 8748 |
| 23 | 19440 |
| 24 | 12501 |
| 25 | 3564 |
| 26 | 510 |
| 27 | 36 |
| 28 | 1 |
| 29 | 32805 |
| 30 | 96957 |
| 31 | 82296 |
| 32 | 31644 |
| 33 | 6435 |
| 34 | 720 |
| 35 | 42 |
| 36 | 1 |
| 37 | 120285 |
| 38 | 459756 |
| 39 | 498663 |
| 40 | 247536 |
| 41 | 66915 |
| 42 | 10530 |
| 43 | 966 |
| 44 | 48 |
| 45 | 1 |
| 46 | 433026 |
| 47 | 2092959 |