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 | 17 |
| 2 | 125 |
| 3 | 605 |
| 4 | 2255 |
| 5 | 7007 |
| 6 | 19019 |
| 7 | 46475 |
| 8 | 104390 |
| 9 | 218790 |
| 10 | 432718 |
| 11 | 814606 |
| 12 | 1469650 |
| 13 | 2554930 |
| 14 | 4299130 |
| 15 | 7027834 |
| 16 | 11195503 |
| 17 | 17425375 |
| 18 | 26558675 |
| 19 | 39714675 |
| 20 | 58363305 |
| 21 | 84412185 |
| 22 | 120310125 |
| 23 | 169169325 |
| 24 | 234908700 |
| 25 | 322420956 |
| 26 | 437766252 |