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 | 2 |
2 | 5 |
3 | 18 |
4 | 85 |
5 | 492 |
6 | 3360 |
7 | 26400 |
8 | 234356 |
9 | 2318280 |
10 | 25278120 |
11 | 301143360 |
12 | 3891041400 |
13 | 54191780160 |
14 | 809233528320 |
15 | 12897125337600 |
16 | 218497018912704 |
17 | 3920950622655360 |
18 | 74295176671900800 |
19 | 1482268147441804800 |