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 | 2 |
| 3 | 2 |
| 4 | 8 |
| 5 | 46 |
| 6 | 182 |
| 7 | 701 |
| 8 | 4917 |
| 9 | 32687 |
| 10 | 241991 |
| 11 | 2924430 |
| 12 | 40311661 |
| 13 | 479980432 |
| 14 | 5962660544 |
| 15 | 111112429148 |
| 16 | 1934811730068 |