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 | 4 |
| 2 | 1 |
| 3 | 26 |
| 4 | 12 |
| 5 | 1 |
| 6 | 216 |
| 7 | 138 |
| 8 | 20 |
| 9 | 1 |
| 10 | 2171 |
| 11 | 1716 |
| 12 | 330 |
| 13 | 28 |
| 14 | 1 |
| 15 | 25628 |
| 16 | 23647 |
| 17 | 5440 |
| 18 | 602 |
| 19 | 36 |
| 20 | 1 |
| 21 | 348050 |
| 22 | 362116 |
| 23 | 94515 |
| 24 | 12348 |
| 25 | 954 |
| 26 | 44 |
| 27 | 1 |
| 28 | 5352788 |
| 29 | 6138746 |
| 30 | 1761940 |
| 31 | 258391 |
| 32 | 23400 |
| 33 | 1386 |
| 34 | 52 |
| 35 | 1 |
| 36 | 92056223 |
| 37 | 114543428 |
| 38 | 35429974 |
| 39 | 5662412 |
| 40 | 572331 |
| 41 | 39556 |
| 42 | 1898 |