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 | 2 |
| 2 | 26 |
| 3 | 396 |
| 4 | 2196 |
| 5 | 9582 |
| 6 | 29790 |
| 7 | 80504 |
| 8 | 185192 |
| 9 | 391290 |
| 10 | 753570 |
| 11 | 1371972 |
| 12 | 2352636 |
| 13 | 3877286 |
| 14 | 6128486 |
| 15 | 9405552 |
| 16 | 13997520 |
| 17 | 20363634 |
| 18 | 28934442 |
| 19 | 40377980 |
| 20 | 55306340 |
| 21 | 74651742 |
| 22 | 99252846 |
| 23 | 130367976 |
| 24 | 169112376 |
| 25 | 217138922 |
| 26 | 275894450 |
| 27 | 347501364 |