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 | 1 |
| 5 | 2 |
| 6 | 5 |
| 7 | 11 |
| 8 | 21 |
| 9 | 36 |
| 10 | 58 |
| 11 | 92 |
| 12 | 149 |
| 13 | 250 |
| 14 | 431 |
| 15 | 750 |
| 16 | 1299 |
| 17 | 2227 |
| 18 | 3784 |
| 19 | 6401 |
| 20 | 10828 |
| 21 | 18364 |
| 22 | 31236 |
| 23 | 53228 |
| 24 | 90741 |
| 25 | 154603 |
| 26 | 263178 |
| 27 | 447702 |
| 28 | 761403 |
| 29 | 1295022 |
| 30 | 2203162 |
| 31 | 3749001 |
| 32 | 6380241 |
| 33 | 10858285 |
| 34 | 18478155 |
| 35 | 31443013 |
| 36 | 53501860 |
| 37 | 91034937 |
| 38 | 154900529 |
| 39 | 263576791 |