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) |
|---|---|
| 5 | 1 |
| 6 | 3 |
| 7 | 10 |
| 8 | 33 |
| 9 | 98 |
| 10 | 291 |
| 11 | 798 |
| 12 | 2200 |
| 13 | 5804 |
| 14 | 15275 |
| 15 | 39014 |
| 16 | 99214 |
| 17 | 247065 |
| 18 | 612090 |
| 19 | 1492837 |
| 20 | 3622213 |
| 21 | 8682565 |
| 22 | 20711303 |
| 23 | 48923317 |
| 24 | 115048586 |
| 25 | 268374750 |
| 26 | 623503251 |
| 27 | 1438753371 |
| 28 | 3307821910 |
| 29 | 7560955644 |
| 30 | 17225642730 |
| 31 | 39047321794 |
| 32 | 88249150462 |
| 33 | 198572820286 |
| 34 | 445610719629 |