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 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 12 |
| 6 | 21 |
| 7 | 37 |
| 8 | 65 |
| 9 | 115 |
| 10 | 208 |
| 11 | 386 |
| 12 | 727 |
| 13 | 1367 |
| 14 | 2536 |
| 15 | 4630 |
| 16 | 8376 |
| 17 | 15217 |
| 18 | 28170 |
| 19 | 53620 |
| 20 | 104843 |
| 21 | 208547 |
| 22 | 416448 |
| 23 | 824990 |
| 24 | 1608138 |
| 25 | 3071813 |
| 26 | 5747106 |
| 27 | 10561032 |
| 28 | 19177849 |
| 29 | 34734782 |
| 30 | 63495907 |
| 31 | 118601911 |
| 32 | 228454377 |
| 33 | 454988025 |
| 34 | 932297291 |