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 | 64 |
| 3 | 316 |
| 4 | 1494 |
| 5 | 6446 |
| 6 | 27170 |
| 7 | 111778 |
| 8 | 455376 |
| 9 | 1841116 |
| 10 | 7415070 |
| 11 | 29785050 |
| 12 | 119460218 |
| 13 | 478648930 |
| 14 | 1916674924 |
| 15 | 7672027140 |
| 16 | 30701884934 |
| 17 | 122843150982 |
| 18 | 491465083490 |
| 19 | 1966100647058 |
| 20 | 7865028551176 |
| 21 | 31461745847388 |
| 22 | 125851241881374 |