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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 8 |
| 7 | 25 |
| 8 | 114 |
| 9 | 438 |
| 10 | 1826 |
| 11 | 7339 |
| 12 | 29876 |
| 13 | 120346 |
| 14 | 485155 |
| 15 | 1947974 |
| 16 | 7812084 |
| 17 | 31267765 |