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 | 1 |
| 1 | 98 |
| 2 | 1666 |
| 3 | 12642 |
| 4 | 59906 |
| 5 | 209762 |
| 6 | 596610 |
| 7 | 1459810 |
| 8 | 3188738 |
| 9 | 6376034 |
| 10 | 11879042 |
| 11 | 20889442 |
| 12 | 35011074 |
| 13 | 56345954 |
| 14 | 87588482 |
| 15 | 132127842 |
| 16 | 194158594 |
| 17 | 278799458 |
| 18 | 392220290 |
| 19 | 541777250 |
| 20 | 736156162 |
| 21 | 985524066 |