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 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 15 |
| 5 | 29 |
| 6 | 60 |
| 7 | 108 |
| 8 | 201 |
| 9 | 364 |
| 10 | 643 |
| 11 | 1106 |
| 12 | 1944 |
| 13 | 3253 |
| 14 | 5493 |
| 15 | 9183 |
| 16 | 15161 |
| 17 | 24727 |
| 18 | 40559 |
| 19 | 65173 |
| 20 | 104963 |
| 21 | 167747 |
| 22 | 266452 |
| 23 | 420329 |
| 24 | 663658 |
| 25 | 1036765 |
| 26 | 1618221 |
| 27 | 2514169 |
| 28 | 3891121 |
| 29 | 5992868 |
| 30 | 9224213 |
| 31 | 14107699 |
| 32 | 21548428 |
| 33 | 32798065 |
| 34 | 49779331 |
| 35 | 75301296 |
| 36 | 113757367 |