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 | 4 |
2 | 20 |
3 | 150 |
4 | 1352 |
5 | 15428 |
6 | 203464 |
7 | 3162960 |
8 | 55405140 |
9 | 1101298600 |
10 | 24222234720 |
11 | 590544046744 |
12 | 15715973012248 |
13 | 456341011254560 |
14 | 14312979247985120 |
15 | 484253161428902192 |
16 | 17550722413456774848 |
17 | 680244627812139042016 |
18 | 28053748582811428182080 |
19 | 1228896901162555453603712 |