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 | 2 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 9 |
| 8 | 22 |
| 9 | 41 |
| 10 | 24 |
| 11 | 64 |
| 12 | 266 |
| 13 | 708 |
| 14 | 1486 |
| 15 | 120 |
| 16 | 625 |
| 17 | 4536 |
| 18 | 17457 |
| 19 | 48088 |
| 20 | 108129 |
| 21 | 720 |
| 22 | 7776 |
| 23 | 100392 |
| 24 | 563088 |
| 25 | 2043864 |
| 26 | 5709120 |
| 27 | 13399176 |
| 28 | 5040 |
| 29 | 117649 |
| 30 | 2739472 |
| 31 | 22516209 |
| 32 | 107972560 |
| 33 | 375217945 |
| 34 | 1053757584 |
| 35 | 2544404617 |
| 36 | 40320 |
| 37 | 2097152 |
| 38 | 89020752 |
| 39 | 1076444064 |
| 40 | 6831882992 |
| 41 | 29566405440 |
| 42 | 99420254352 |
| 43 | 279663595232 |
| 44 | 688833593904 |