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 | 1 |
| 4 | 15 |
| 5 | 1 |
| 6 | 21 |
| 7 | 1 |
| 8 | 45 |
| 9 | 1 |
| 10 | 33 |
| 11 | 1 |
| 12 | 1365 |
| 13 | 1 |
| 14 | 45 |
| 15 | 1 |
| 16 | 765 |
| 17 | 1 |
| 18 | 399 |
| 19 | 1 |
| 20 | 3465 |
| 21 | 1 |
| 22 | 1035 |
| 23 | 1 |
| 24 | 20475 |
| 25 | 1 |
| 26 | 189 |
| 27 | 1 |
| 28 | 435 |
| 29 | 1 |
| 30 | 7161 |
| 31 | 1 |
| 32 | 58905 |
| 33 | 1 |
| 34 | 315 |
| 35 | 1 |
| 36 | 959595 |
| 37 | 1 |
| 38 | 117 |
| 39 | 1 |
| 40 | 20295 |
| 41 | 1 |
| 42 | 148995 |
| 43 | 1 |
| 44 | 108675 |
| 45 | 1 |
| 46 | 14805 |
| 47 | 1 |
| 48 | 2436525 |
| 49 | 1 |
| 50 | 65637 |
| 51 | 1 |
| 52 | 78705 |
| 53 | 1 |
| 54 | 21945 |
| 55 | 1 |
| 56 | 24795 |
| 57 | 1 |
| 58 | 531 |
| 59 | 1 |
| 60 | 85180095 |
| 61 | 1 |
| 62 | 135135 |