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 | 7 |
| 2 | 254 |
| 3 | 3279 |
| 4 | 21844 |
| 5 | 97655 |
| 6 | 335922 |
| 7 | 960799 |
| 8 | 2396744 |
| 9 | 5380839 |
| 10 | 11111110 |
| 11 | 21435887 |
| 12 | 39089244 |
| 13 | 67977559 |
| 14 | 113522234 |
| 15 | 183063615 |
| 16 | 286331152 |
| 17 | 435984839 |
| 18 | 648232974 |
| 19 | 943531279 |
| 20 | 1347368420 |
| 21 | 1891142967 |
| 22 | 2613136834 |
| 23 | 3559590239 |
| 24 | 4785883224 |
| 25 | 6357828775 |
| 26 | 8353082582 |