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 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 4 |
| 5 | 9 |
| 6 | 15 |
| 7 | 29 |
| 8 | 53 |
| 9 | 98 |
| 10 | 180 |
| 11 | 336 |
| 12 | 618 |
| 13 | 1142 |
| 14 | 2110 |
| 15 | 3899 |
| 16 | 7197 |
| 17 | 13283 |
| 18 | 24509 |
| 19 | 45218 |
| 20 | 83396 |
| 21 | 153769 |
| 22 | 283463 |
| 23 | 522449 |
| 24 | 962732 |
| 25 | 1773742 |
| 26 | 3267417 |
| 27 | 6018030 |
| 28 | 11082693 |
| 29 | 20407174 |
| 30 | 37572633 |
| 31 | 69169726 |
| 32 | 127326924 |
| 33 | 234362474 |
| 34 | 431343281 |
| 35 | 793831500 |
| 36 | 1460854117 |