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 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 11 |
| 5 | 21 |
| 6 | 36 |
| 7 | 64 |
| 8 | 115 |
| 9 | 211 |
| 10 | 383 |
| 11 | 694 |
| 12 | 1256 |
| 13 | 2276 |
| 14 | 4126 |
| 15 | 7479 |
| 16 | 13555 |
| 17 | 24566 |
| 18 | 44523 |
| 19 | 80694 |
| 20 | 146251 |
| 21 | 265066 |
| 22 | 480406 |
| 23 | 870689 |
| 24 | 1578040 |
| 25 | 2860046 |
| 26 | 5183558 |
| 27 | 9394699 |
| 28 | 17026986 |
| 29 | 30859771 |
| 30 | 55930361 |
| 31 | 101368389 |
| 32 | 183720435 |
| 33 | 332975581 |
| 34 | 603486148 |
| 35 | 1093760479 |