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 | 6 |
4 | 36 |
5 | 330 |
6 | 4092 |
7 | 63308 |
8 | 1165952 |
9 | 24802704 |
10 | 596862420 |
11 | 16003332092 |
12 | 472588688880 |
13 | 15231153085304 |
14 | 531801227022912 |
15 | 19992702649780800 |
16 | 805099660439308672 |
17 | 34574148236596003008 |
18 | 1577229602738525889984 |
19 | 76172611622917782581040 |
20 | 3882814240467405224924960 |
21 | 208333046141920439476582608 |
22 | 11737307286279509352537747760 |