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 | 442 |
| 1 | 629 |
| 2 | 1326 |
| 3 | 2259 |
| 4 | 5508 |
| 5 | 6585 |
| 6 | 11628 |
| 7 | 15129 |
| 8 | 24912 |
| 9 | 26259 |
| 10 | 52038 |
| 11 | 77337 |
| 12 | 155394 |
| 13 | 221931 |
| 14 | 442374 |
| 15 | 639009 |
| 16 | 1179738 |
| 17 | 1917027 |
| 18 | 3539130 |
| 19 | 5062869 |
| 20 | 10666542 |
| 21 | 18285939 |
| 22 | 45369156 |
| 23 | 54513657 |
| 24 | 96444396 |
| 25 | 125792217 |
| 26 | 207562704 |
| 27 | 220034931 |