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 | 50 |
| 3 | 162 |
| 4 | 470 |
| 5 | 9584 |
| 6 | 28400 |
| 7 | 91890 |
| 8 | 193040 |
| 9 | 265070 |
| 10 | 291824 |
| 11 | 337100 |
| 12 | 388830 |
| 13 | 524070 |
| 14 | 3231824 |
| 15 | 18052070 |
| 16 | 30949850 |
| 17 | 31021880 |
| 18 | 65552768 |
| 19 | 774659600 |
| 20 | 10276607888 |
| 21 | 38128783428 |
| 22 | 190067750300 |
| 23 | 4835458627140 |
| 24 | 25515567812750 |