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 | 14 |
| 2 | 574 |
| 3 | 3542 |
| 4 | 18494 |
| 5 | 43414 |
| 6 | 145222 |
| 7 | 235998 |
| 8 | 591934 |
| 9 | 860846 |
| 10 | 1779974 |
| 11 | 2256422 |
| 12 | 4678982 |
| 13 | 5195750 |
| 14 | 9675918 |
| 15 | 10983742 |
| 16 | 18942014 |
| 17 | 19873966 |
| 18 | 35294686 |
| 19 | 34670454 |
| 20 | 57349894 |
| 21 | 59707494 |
| 22 | 92513302 |
| 23 | 90116222 |
| 24 | 149759302 |
| 25 | 135668414 |
| 26 | 213025750 |
| 27 | 209185718 |
| 28 | 311753358 |
| 29 | 287144326 |
| 30 | 450333422 |