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 | 62480 |
| 2 | 1432640 |
| 3 | 7660880 |
| 4 | 27931280 |
| 5 | 39685376 |
| 6 | 116636864 |
| 7 | 179299575 |
| 8 | 318523136 |
| 9 | 4794813680 |
| 10 | 4483640576 |
| 11 | 4773473775 |
| 12 | 6100571295 |
| 13 | 7076217500 |
| 14 | 12475715175 |
| 15 | 17094480975 |
| 16 | 15069863936 |
| 17 | 21699524864 |
| 18 | 24011966300 |
| 19 | 30304399616 |