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) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 56 |
| 3 | 296 |
| 4 | 1640 |
| 5 | 8984 |
| 6 | 49256 |
| 7 | 266600 |
| 8 | 1448072 |
| 9 | 7820984 |
| 10 | 42316952 |
| 11 | 227940584 |
| 12 | 1229803016 |
| 13 | 6612947048 |
| 14 | 35605181720 |
| 15 | 191204813288 |
| 16 | 1027868658200 |