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) |
---|---|
6 | 1 |
7 | 0 |
8 | 0 |
9 | 0 |
10 | 0 |
11 | 0 |
12 | 924 |
13 | 3432 |
14 | 6006 |
15 | 10010 |
16 | 16016 |
17 | 24752 |
18 | 17190264 |
19 | 139729800 |
20 | 748339320 |
21 | 2910015528 |
22 | 9794896188 |
23 | 30251595066 |
24 | 2396910064472 |
25 | 33228482071400 |
26 | 291616291666700 |
27 | 2036218597884900 |
28 | 11895959650285620 |
29 | 61536913327513260 |
30 | 1662981928016982300 |