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 | 21 |
4 | 147 |
5 | 1250 |
6 | 12633 |
7 | 147497 |
8 | 1947676 |
9 | 28699373 |
10 | 466994003 |
11 | 8309274754 |
12 | 160368858609 |
13 | 3336869582657 |
14 | 74468098634660 |
15 | 1773827462044421 |
16 | 44905503103938915 |
17 | 1203843692164105458 |
18 | 34070243272290551113 |
19 | 1015056385225183643721 |