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) |
---|---|
0 | 1 |
1 | 30 |
2 | 5310 |
3 | 2453220 |
4 | 910100190 |
5 | 409796742600 |
6 | 181276113779460 |
7 | 84362079365838960 |
8 | 39636500385830239350 |
9 | 18986938020443181757410 |
10 | 9186944625290601368703000 |
11 | 4491611148118819794144792660 |
12 | 2212757749022582852433835771860 |
13 | 1097546094982154634980848454416920 |