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 | 2 |
| 1 | 2 |
| 2 | 3 |
| 3 | 1 |
| 4 | 43 |
| 5 | 201 |
| 6 | 67 |
| 7 | 1289 |
| 8 | 2278 |
| 9 | 14662 |
| 10 | 53782 |
| 11 | 171798 |
| 12 | 57266 |
| 13 | 312537 |
| 14 | 104179 |
| 15 | 7353209 |
| 16 | 14081926 |
| 17 | 94917254 |
| 18 | 148495259 |
| 19 | 338541478 |
| 20 | 2498895558 |
| 21 | 832965186 |
| 22 | 277655062 |
| 23 | 45869694854 |
| 24 | 90480235883 |
| 25 | 230874654662 |