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 | 0 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 0 |
6 | 20 |
7 | 0 |
8 | 1 |
9 | 1680 |
10 | 0 |
11 | 330 |
12 | 369600 |
13 | 1 |
14 | 180180 |
15 | 168168000 |
16 | 13990 |
17 | 163363200 |
18 | 137225088001 |
19 | 39041010 |
20 | 232792560000 |
21 | 182509367449640 |
22 | 118574979600 |
23 | 494730748512001 |
24 | 369398970833730090 |
25 | 451334037000000 |
26 | 1500683270499930350 |
27 | 1080492079984609149000 |