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 | 1 |
| 3 | 4 |
| 4 | 3 |
| 5 | 163 |
| 6 | 5 |
| 7 | 25 |
| 8 | 60 |
| 9 | 1525 |
| 10 | 1445580 |
| 11 | 1609 |
| 12 | 3 |
| 13 | 17 |
| 14 | 1 |
| 15 | 59 |
| 16 | 36793758459 |
| 17 | 12379533 |
| 18 | 3421967 |
| 19 | 15 |
| 20 | 1 |
| 21 | 116905896337578232 |
| 22 | 20236572837 |
| 23 | 290792847537859675 |
| 24 | 60 |
| 25 | 2713800 |
| 26 | 461 |
| 27 | 7033 |
| 28 | 2112 |
| 29 | 1 |
| 30 | 120 |
| 31 | 1 |
| 32 | 35807 |
| 33 | 19 |
| 34 | 413328944 |
| 35 | 36 |
| 36 | 41 |
| 37 | 59441263078804 |
| 38 | 3284 |
| 39 | 3 |
| 40 | 1 |
| 41 | 45644 |