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) |
---|---|
2 | 1 |
3 | 1 |
4 | 3 |
5 | 3 |
6 | 2 |
7 | 1 |
8 | 38 |
9 | 1080 |
10 | 14040 |
11 | 85500 |
12 | 274104 |
13 | 493920 |
14 | 504000 |
15 | 272160 |
16 | 60480 |
17 | 1 |
18 | 3502 |
19 | 9743106 |
20 | 3017318368 |
21 | 249756082950 |
22 | 8612276962188 |
23 | 156010151929968 |
24 | 1699145259725088 |
25 | 12107373916276800 |
26 | 59649257217110400 |