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 | 0 |
| 1 | 10 |
| 2 | 53 |
| 3 | 242 |
| 4 | 377 |
| 5 | 1491 |
| 6 | 1492 |
| 7 | 6801 |
| 8 | 14007 |
| 9 | 100823 |
| 10 | 559940 |
| 11 | 1148303 |
| 12 | 4036338 |
| 13 | 4036339 |
| 14 | 53619497 |
| 15 | 119476156 |
| 16 | 146226201 |
| 17 | 918583174 |
| 18 | 4627233991 |
| 19 | 11089076233 |