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 | 0 |
2 | 2 |
3 | 3 |
4 | 40 |
5 | 245 |
6 | 2976 |
7 | 35287 |
8 | 524560 |
9 | 8790777 |
10 | 165530800 |
11 | 3493679651 |
12 | 80812685064 |
13 | 2049413147509 |
14 | 56294089065592 |
15 | 1668771901644135 |
16 | 53057068616526496 |
17 | 1801519375618579313 |
18 | 65063987978980974048 |
19 | 2490449984485154892235 |
20 | 100716775979173952155480 |