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 | 0 |
| 1 | 5 |
| 2 | 25 |
| 3 | 19 |
| 4 | 23 |
| 5 | 18 |
| 6 | 9 |
| 7 | 7 |
| 8 | 4 |
| 9 | 2 |
| 10 | 1 |
| 11 | 282 |
| 12 | 1529 |
| 13 | 1586 |
| 14 | 1397 |
| 15 | 898 |
| 16 | 658 |
| 17 | 538 |
| 18 | 477 |
| 19 | 529 |
| 20 | 736 |
| 21 | 586 |
| 22 | 397 |
| 23 | 366 |
| 24 | 294 |
| 25 | 246 |
| 26 | 243 |
| 27 | 187 |
| 28 | 3237326 |
| 29 | 3677393 |
| 30 | 3586673 |
| 31 | 3553787 |
| 32 | 3515987 |
| 33 | 22572473 |
| 34 | 518376965 |
| 35 | 516675965 |
| 36 | 516963965 |
| 37 | 41883474553 |
| 38 | 41881554553 |
| 39 | 41863638649 |
| 40 | 35632297938395 |