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 | 2 |
| 3 | 4 |
| 4 | 14 |
| 5 | 26 |
| 6 | 107 |
| 7 | 190 |
| 8 | 1234 |
| 9 | 2182 |
| 10 | 9947 |
| 11 | 17414 |
| 12 | 126953 |
| 13 | 228398 |
| 14 | 1039404 |
| 15 | 1857419 |
| 16 | 19047146 |
| 17 | 35215110 |
| 18 | 168364007 |
| 19 | 307674658 |
| 20 | 2378963269 |
| 21 | 4429446046 |
| 22 | 20237375204 |
| 23 | 37371654467 |
| 24 | 410117798653 |
| 25 | 776233491226 |
| 26 | 3797821367602 |