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 | 10 |
| 2 | 57 |
| 3 | 602 |
| 4 | 10545 |
| 5 | 145426 |
| 6 | 1724905 |
| 7 | 19369522 |
| 8 | 214096737 |
| 9 | 2357416250 |
| 10 | 25936424601 |
| 11 | 285309899050 |
| 12 | 3138425390737 |
| 13 | 34522707317122 |
| 14 | 379749826053705 |
| 15 | 4177248158025026 |
| 16 | 45949729846794945 |
| 17 | 505447028475156202 |