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 | 5 |
| 2 | 6 |
| 3 | 113 |
| 4 | 119 |
| 5 | 232 |
| 6 | 351 |
| 7 | 1636 |
| 8 | 1987 |
| 9 | 19519 |
| 10 | 177658 |
| 11 | 374835 |
| 12 | 552493 |
| 13 | 927328 |
| 14 | 1479821 |
| 15 | 3886970 |
| 16 | 28688611 |
| 17 | 32575581 |
| 18 | 61264192 |
| 19 | 461424925 |
| 20 | 5136938367 |
| 21 | 5598363292 |
| 22 | 10735301659 |
| 23 | 16333664951 |
| 24 | 59736296512 |
| 25 | 76069961463 |