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 | 0 |
| 2 | 511 |
| 3 | 19171 |
| 4 | 19682 |
| 5 | 242461 |
| 6 | 261632 |
| 7 | 262143 |
| 8 | 1690981 |
| 9 | 1933442 |
| 10 | 1952613 |
| 11 | 1953124 |
| 12 | 8124571 |
| 13 | 9815552 |
| 14 | 10058013 |
| 15 | 10077184 |
| 16 | 10077695 |
| 17 | 30275911 |
| 18 | 38400482 |
| 19 | 40091463 |
| 20 | 40333924 |
| 21 | 40353095 |
| 22 | 40353606 |
| 23 | 93864121 |
| 24 | 124140032 |
| 25 | 132264603 |
| 26 | 133955584 |