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) |
|---|---|
| 4 | 1 |
| 5 | 2 |
| 6 | 5 |
| 7 | 13 |
| 8 | 34 |
| 9 | 88 |
| 10 | 221 |
| 11 | 530 |
| 12 | 1204 |
| 13 | 2587 |
| 14 | 5270 |
| 15 | 10220 |
| 16 | 18955 |
| 17 | 33775 |
| 18 | 58060 |
| 19 | 96647 |
| 20 | 156299 |
| 21 | 246280 |
| 22 | 379051 |
| 23 | 571103 |
| 24 | 843944 |
| 25 | 1225258 |
| 26 | 1750255 |
| 27 | 2463232 |
| 28 | 3419366 |
| 29 | 4686761 |
| 30 | 6348772 |
| 31 | 8506630 |
| 32 | 11282393 |
| 33 | 14822249 |
| 34 | 19300198 |
| 35 | 24922141 |