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) |
|---|---|
| 2 | 5 |
| 3 | 8 |
| 4 | 37 |
| 5 | 176 |
| 6 | 196 |
| 7 | 1471 |
| 8 | 6885 |
| 9 | 5948 |
| 10 | 60460 |
| 11 | 280600 |
| 12 | 199316 |
| 13 | 2533987 |
| 14 | 11698223 |
| 15 | 7080928 |
| 16 | 107594213 |
| 17 | 494889092 |
| 18 | 261542752 |