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 | 296 |
| 2 | 14751 |
| 3 | 242114 |
| 4 | 2335459 |
| 5 | 16625026 |
| 6 | 95808564 |
| 7 | 468021427 |
| 8 | 1994287334 |
| 9 | 7568051210 |
| 10 | 25994968917 |
| 11 | 81880904262 |
| 12 | 239073335825 |
| 13 | 652853600502 |
| 14 | 1679943141302 |
| 15 | 4099447427041 |
| 16 | 9538065127010 |
| 17 | 21257876699694 |
| 18 | 45567034926263 |
| 19 | 94269674457770 |
| 20 | 188804401330651 |
| 21 | 367061634874676 |