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 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 5 |
| 8 | 9 |
| 9 | 14 |
| 10 | 25 |
| 11 | 39 |
| 12 | 68 |
| 13 | 107 |
| 14 | 182 |
| 15 | 289 |
| 16 | 483 |
| 17 | 772 |
| 18 | 1275 |
| 19 | 2047 |
| 20 | 3355 |
| 21 | 5402 |
| 22 | 8811 |
| 23 | 14213 |
| 24 | 23112 |
| 25 | 37325 |
| 26 | 60580 |
| 27 | 97905 |
| 28 | 158717 |
| 29 | 256622 |
| 30 | 415715 |
| 31 | 672337 |
| 32 | 1088661 |
| 33 | 1760998 |
| 34 | 2850645 |
| 35 | 4611643 |
| 36 | 7463884 |
| 37 | 12075527 |
| 38 | 19541994 |
| 39 | 31617521 |
| 40 | 51163695 |
| 41 | 82781216 |
| 42 | 133951675 |