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 | 45 |
2 | 1980 |
3 | 87120 |
4 | 3833280 |
5 | 168664320 |
6 | 7421229090 |
7 | 326534036400 |
8 | 14367495685950 |
9 | 632169725893200 |
10 | 27815464230602400 |
11 | 1223880262963776000 |
12 | 53850724390367020710 |
13 | 2369431557254469630780 |
14 | 104254974618644628784170 |