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 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 6 |
| 8 | 9 |
| 9 | 15 |
| 10 | 24 |
| 11 | 39 |
| 12 | 64 |
| 13 | 106 |
| 14 | 174 |
| 15 | 288 |
| 16 | 476 |
| 17 | 791 |
| 18 | 1315 |
| 19 | 2192 |
| 20 | 3659 |
| 21 | 6120 |
| 22 | 10251 |
| 23 | 17195 |
| 24 | 28880 |
| 25 | 48565 |
| 26 | 81760 |
| 27 | 137786 |
| 28 | 232427 |
| 29 | 392429 |
| 30 | 663130 |
| 31 | 1121446 |
| 32 | 1897924 |
| 33 | 3214257 |
| 34 | 5447110 |
| 35 | 9236757 |
| 36 | 15672057 |
| 37 | 26605536 |
| 38 | 45190288 |
| 39 | 76795140 |
| 40 | 130565138 |
| 41 | 222083192 |
| 42 | 377911330 |
| 43 | 643341150 |