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 | 1 |
| 4 | 3 |
| 5 | 9 |
| 6 | 23 |
| 7 | 51 |
| 8 | 103 |
| 9 | 195 |
| 10 | 353 |
| 11 | 619 |
| 12 | 1061 |
| 13 | 1789 |
| 14 | 2981 |
| 15 | 4925 |
| 16 | 8087 |
| 17 | 13221 |
| 18 | 21547 |
| 19 | 35039 |
| 20 | 56891 |
| 21 | 92271 |
| 22 | 149541 |
| 23 | 242231 |
| 24 | 392233 |
| 25 | 634969 |
| 26 | 1027753 |
| 27 | 1663321 |
| 28 | 2691723 |
| 29 | 4355745 |
| 30 | 7048223 |
| 31 | 11404779 |
| 32 | 18453871 |
| 33 | 29859579 |
| 34 | 48314441 |
| 35 | 78175075 |
| 36 | 126490637 |
| 37 | 204666901 |
| 38 | 331158797 |