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) |
---|---|
1 | 1 |
2 | 2 |
3 | 12 |
4 | 120 |
5 | 1680 |
6 | 30480 |
7 | 678720 |
8 | 17902080 |
9 | 545529600 |
10 | 18854519040 |
11 | 728651911680 |
12 | 31133305082880 |
13 | 1457247407616000 |
14 | 74151941277173760 |
15 | 4075563460173004800 |
16 | 240617659203765043200 |
17 | 15186689706926068531200 |
18 | 1020415122190724766105600 |
19 | 72722026905140804154163200 |