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 | 9 |
| 1 | 10 |
| 2 | 59 |
| 3 | 69 |
| 4 | 128 |
| 5 | 197 |
| 6 | 325 |
| 7 | 522 |
| 8 | 847 |
| 9 | 4757 |
| 10 | 5604 |
| 11 | 105629 |
| 12 | 111233 |
| 13 | 661794 |
| 14 | 773027 |
| 15 | 1434821 |
| 16 | 2207848 |
| 17 | 3642669 |
| 18 | 5850517 |
| 19 | 9493186 |
| 20 | 53316447 |
| 21 | 62809633 |
| 22 | 1183889841 |
| 23 | 1246699474 |
| 24 | 7417387211 |
| 25 | 8664086685 |
| 26 | 16081473896 |
| 27 | 24745560581 |
| 28 | 40827034477 |
| 29 | 65572595058 |