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 | 2 |
| 3 | 5 |
| 4 | 8 |
| 5 | 13 |
| 6 | 24 |
| 7 | 37 |
| 8 | 56 |
| 9 | 83 |
| 10 | 140 |
| 11 | 205 |
| 12 | 306 |
| 13 | 439 |
| 14 | 632 |
| 15 | 983 |
| 16 | 1418 |
| 17 | 2035 |
| 18 | 2886 |
| 19 | 4063 |
| 20 | 5618 |
| 21 | 8369 |
| 22 | 11666 |
| 23 | 16423 |
| 24 | 22716 |
| 25 | 31477 |
| 26 | 42782 |
| 27 | 58385 |
| 28 | 82700 |
| 29 | 113161 |
| 30 | 155028 |
| 31 | 210769 |
| 32 | 285644 |
| 33 | 383687 |
| 34 | 514496 |
| 35 | 682921 |
| 36 | 940326 |
| 37 | 1256299 |
| 38 | 1687364 |
| 39 | 2245691 |
| 40 | 2997182 |
| 41 | 3955447 |
| 42 | 5233314 |