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 | 0 |
1 | 1 |
2 | 6 |
3 | 24 |
4 | 80 |
5 | 240 |
6 | 672 |
7 | 1792 |
8 | 4608 |
9 | 11520 |
10 | 28160 |
11 | 67584 |
12 | 159744 |
13 | 372736 |
14 | 860160 |
15 | 1966080 |
16 | 4456448 |
17 | 10027008 |
18 | 22413312 |
19 | 49807360 |
20 | 110100480 |
21 | 242221056 |
22 | 530579456 |
23 | 1157627904 |
24 | 2516582400 |
25 | 5452595200 |
26 | 11777605632 |
27 | 25367150592 |
28 | 54492397568 |
29 | 116769423360 |
30 | 249644974080 |
31 | 532575944704 |