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 | 2 |
| 2 | 1 |
| 3 | 8 |
| 4 | 14 |
| 5 | 26 |
| 6 | 62 |
| 7 | 134 |
| 8 | 393 |
| 9 | 1257 |
| 10 | 4659 |
| 11 | 9314 |
| 12 | 27933 |
| 13 | 167073 |
| 14 | 334142 |
| 15 | 4677862 |
| 16 | 14033577 |
| 17 | 56134292 |
| 18 | 2133102298 |
| 19 | 11788191218 |
| 20 | 52541651594 |
| 21 | 536226160966 |
| 22 | 2681130804805 |
| 23 | 8512643845707 |
| 24 | 129535245187539 |