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 | 344 |
| 4 | 2120 |
| 5 | 12872 |
| 6 | 78392 |
| 7 | 472952 |
| 8 | 2861768 |
| 9 | 17223224 |
| 10 | 103835096 |
| 11 | 623927912 |
| 12 | 3753164744 |
| 13 | 22526613176 |
| 14 | 135308002424 |
| 15 | 811435356200 |
| 16 | 4868892591752 |