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 | 3 |
| 3 | 6 |
| 4 | 26 |
| 5 | 92 |
| 6 | 441 |
| 7 | 2025 |
| 8 | 10141 |
| 9 | 51131 |
| 10 | 264938 |
| 11 | 1387761 |
| 12 | 7364492 |
| 13 | 39433242 |
| 14 | 212959457 |
| 15 | 1158325878 |
| 16 | 6341136682 |
| 17 | 34911146404 |