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 | 1 |
| 3 | 1 |
| 4 | 7 |
| 5 | 1 |
| 6 | 3 |
| 7 | 13 |
| 8 | 3 |
| 9 | 55 |
| 10 | 201 |
| 11 | 159 |
| 12 | 865 |
| 13 | 1803 |
| 14 | 7093 |
| 15 | 43431 |
| 16 | 14253 |
| 17 | 22903 |
| 18 | 130851 |
| 19 | 120763 |
| 20 | 1099693 |
| 21 | 4527293 |
| 22 | 4976767 |
| 23 | 7516897 |
| 24 | 14349685 |
| 25 | 72866239 |
| 26 | 81946383 |
| 27 | 167841291 |
| 28 | 897853735 |
| 29 | 455799253 |
| 30 | 946267825 |
| 31 | 5054280915 |
| 32 | 3941268001 |
| 33 | 17066300985 |
| 34 | 49111862599 |