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 | 8 |
| 2 | 32 |
| 3 | 132 |
| 4 | 556 |
| 5 | 2324 |
| 6 | 9724 |
| 7 | 40692 |
| 8 | 170268 |
| 9 | 712468 |
| 10 | 2981244 |
| 11 | 12474676 |
| 12 | 52198876 |
| 13 | 218420308 |
| 14 | 913955132 |
| 15 | 3824342132 |
| 16 | 16002528156 |
| 17 | 66960773524 |
| 18 | 280189801724 |
| 19 | 1172422611892 |
| 20 | 4905870136668 |
| 21 | 20528060064468 |
| 22 | 85897351187644 |