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 | 1 |
2 | 4 |
3 | 30 |
4 | 348 |
5 | 5460 |
6 | 108480 |
7 | 2609040 |
8 | 73713360 |
9 | 2393087760 |
10 | 87791891040 |
11 | 3591843726240 |
12 | 162157925160000 |
13 | 8007919490450880 |
14 | 429418816003457280 |
15 | 24849579630222547200 |
16 | 1543505958412498080000 |
17 | 102430107277414595078400 |
18 | 7232759636684706937612800 |