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 | 4 |
3 | 40 |
4 | 355 |
5 | 4425 |
6 | 69521 |
7 | 1162951 |
8 | 22259414 |
9 | 478096938 |
10 | 11614132907 |
11 | 299700810545 |
12 | 8456607358157 |
13 | 255883964141333 |
14 | 8275199908539114 |
15 | 287869753459458468 |
16 | 10564476589147507523 |
17 | 409845503129745719513 |
18 | 16777378294629533764699 |
19 | 720626728499888159724831 |