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 | 2 |
| 4 | 1 |
| 5 | 4 |
| 6 | 12 |
| 7 | 1 |
| 8 | 8 |
| 9 | 38 |
| 10 | 184 |
| 11 | 1 |
| 12 | 16 |
| 13 | 125 |
| 14 | 976 |
| 15 | 8512 |
| 16 | 1 |
| 17 | 32 |
| 18 | 414 |
| 19 | 5382 |
| 20 | 79384 |
| 21 | 1262816 |
| 22 | 1 |
| 23 | 64 |
| 24 | 1369 |
| 25 | 29739 |
| 26 | 752061 |
| 27 | 20562673 |
| 28 | 575780564 |
| 29 | 1 |
| 30 | 128 |
| 31 | 4522 |
| 32 | 163496 |
| 33 | 7110272 |
| 34 | 336067810 |
| 35 | 16230458696 |
| 36 | 789360053252 |
| 37 | 1 |
| 38 | 256 |
| 39 | 14934 |
| 40 | 896476 |
| 41 | 67005561 |