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 | 5 |
| 4 | 26 |
| 5 | 9 |
| 6 | 61 |
| 7 | 775 |
| 8 | 1179 |
| 9 | 225 |
| 10 | 1385 |
| 11 | 32516 |
| 12 | 114318 |
| 13 | 87156 |
| 14 | 11025 |
| 15 | 50521 |
| 16 | 1894429 |
| 17 | 11982834 |
| 18 | 20371266 |
| 19 | 9652725 |
| 20 | 893025 |
| 21 | 2702765 |
| 22 | 148008446 |
| 23 | 1472351967 |
| 24 | 4417978068 |
| 25 | 4546174779 |
| 26 | 1502513550 |