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 | 0 |
| 2 | 549504 |
| 3 | 1798848 |
| 4 | 4193856 |
| 5 | 4804128 |
| 6 | 5827584 |
| 7 | 7426944 |
| 8 | 14397696 |
| 9 | 34324992 |
| 10 | 39401250 |
| 11 | 39611040 |
| 12 | 42856128 |
| 13 | 45312750 |
| 14 | 62593440 |
| 15 | 81575424 |
| 16 | 86171040 |
| 17 | 92348928 |
| 18 | 140184576 |
| 19 | 151600896 |
| 20 | 196475328 |
| 21 | 221695488 |
| 22 | 251584704 |
| 23 | 263680704 |
| 24 | 271165104 |
| 25 | 287945280 |
| 26 | 475388928 |
| 27 | 499654656 |