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 | 64 |
| 2 | 7921 |
| 3 | 9604 |
| 4 | 164836 |
| 5 | 351649 |
| 6 | 996004 |
| 7 | 19758025 |
| 8 | 20647936 |
| 9 | 29757025 |
| 10 | 30846916 |
| 11 | 97990201 |
| 12 | 99960004 |
| 13 | 1203187969 |
| 14 | 1975180249 |
| 15 | 3086469136 |
| 16 | 4265657344 |
| 17 | 8143618564 |
| 18 | 9999600004 |
| 19 | 115644884356 |
| 20 | 131504868496 |
| 21 | 132231867769 |
| 22 | 140039859961 |
| 23 | 173879826121 |
| 24 | 339900660100 |
| 25 | 391600608400 |