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) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 43 |
| 4 | 314 |
| 5 | 2399 |
| 6 | 19623 |
| 7 | 166204 |
| 8 | 1440534 |
| 9 | 12712271 |
| 10 | 113764516 |
| 11 | 1029517296 |
| 12 | 9401972490 |
| 13 | 86516425996 |
| 14 | 801235712049 |