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 | 250 |
| 2 | 4262 |
| 3 | 31928 |
| 4 | 152244 |
| 5 | 545517 |
| 6 | 1604853 |
| 7 | 4086756 |
| 8 | 9320654 |
| 9 | 10070211 |
| 10 | 20892885 |
| 11 | 40458488 |
| 12 | 74002500 |
| 13 | 129017276 |
| 14 | 215914886 |
| 15 | 348808796 |
| 16 | 546424205 |
| 17 | 833146874 |
| 18 | 1240220256 |
| 19 | 1288986925 |
| 20 | 1874378945 |
| 21 | 2674289273 |
| 22 | 3750591998 |