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 | 2 |
| 3 | 4 |
| 4 | 36 |
| 5 | 2330 |
| 6 | 3274 |
| 7 | 7195 |
| 8 | 28106 |
| 9 | 38508 |
| 10 | 74032 |
| 11 | 74935 |
| 12 | 203763 |
| 13 | 264407 |
| 14 | 431066 |
| 15 | 1679581 |
| 16 | 2473728 |
| 17 | 2790505 |
| 18 | 9118184 |
| 19 | 10686256 |
| 20 | 39154390 |
| 21 | 64918230 |
| 22 | 3725272877 |
| 23 | 6503732261 |
| 24 | 10906782833 |
| 25 | 33507112881 |
| 26 | 34193678041 |