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 | 5 |
| 2 | 61 |
| 3 | 465 |
| 4 | 1585 |
| 5 | 5257 |
| 6 | 9749 |
| 7 | 24025 |
| 8 | 38381 |
| 9 | 67177 |
| 10 | 100889 |
| 11 | 176005 |
| 12 | 210033 |
| 13 | 360877 |
| 14 | 450349 |
| 15 | 589581 |
| 16 | 779541 |
| 17 | 1127509 |
| 18 | 1251805 |
| 19 | 1806061 |
| 20 | 1970129 |
| 21 | 2504401 |
| 22 | 3116945 |
| 23 | 4017701 |
| 24 | 4163753 |
| 25 | 5433657 |
| 26 | 6335589 |