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) |
---|---|
2 | 1 |
3 | 1 |
4 | 3 |
5 | 5 |
6 | 19 |
7 | 63 |
8 | 365 |
9 | 1199 |
10 | 7177 |
11 | 36209 |
12 | 295355 |
13 | 1652085 |
14 | 15193115 |
15 | 114570449 |
16 | 1323338487 |
17 | 8732267521 |
18 | 93577466255 |
19 | 822198823101 |
20 | 10952623368043 |