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 | 9 |
4 | 60 |
5 | 495 |
6 | 4986 |
7 | 58401 |
8 | 780984 |
9 | 11749779 |
10 | 196446870 |
11 | 3612882933 |
12 | 72484364052 |
13 | 1575418827879 |
14 | 36875093680530 |
15 | 924769734574185 |
16 | 24737895033896304 |
17 | 703105981990977915 |
18 | 21159355356941587470 |
19 | 672148402091190649629 |
20 | 22475238194908656800460 |