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 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 10 |
| 8 | 18 |
| 9 | 29 |
| 10 | 50 |
| 11 | 81 |
| 12 | 136 |
| 13 | 220 |
| 14 | 364 |
| 15 | 589 |
| 16 | 966 |
| 17 | 1563 |
| 18 | 2550 |
| 19 | 4126 |
| 20 | 6710 |
| 21 | 10857 |
| 22 | 17622 |
| 23 | 28513 |
| 24 | 46224 |
| 25 | 74792 |
| 26 | 121160 |
| 27 | 196041 |
| 28 | 317434 |
| 29 | 513619 |
| 30 | 831430 |
| 31 | 1345282 |
| 32 | 2177322 |
| 33 | 3522981 |
| 34 | 5701290 |
| 35 | 9224881 |
| 36 | 14927768 |
| 37 | 24153636 |
| 38 | 39083988 |
| 39 | 63239221 |
| 40 | 102327390 |