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 | 1 |
3 | 2 |
4 | 10 |
5 | 70 |
6 | 630 |
7 | 6930 |
8 | 90090 |
9 | 90090 |
10 | 1531530 |
11 | 29099070 |
12 | 29099070 |
13 | 669278610 |
14 | 3346393050 |
15 | 10039179150 |
16 | 291136195350 |
17 | 9025222055850 |
18 | 9025222055850 |
19 | 9025222055850 |
20 | 333933216066450 |