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 | 3 |
2 | 15 |
3 | 97 |
4 | 711 |
5 | 5613 |
6 | 46552 |
7 | 399918 |
8 | 3527553 |
9 | 31761600 |
10 | 290721387 |
11 | 2697131541 |
12 | 25304974597 |
13 | 239684681523 |
14 | 2288849098119 |
15 | 22012319667437 |
16 | 213011739042714 |
17 | 2072597720747352 |
18 | 20264567643461700 |
19 | 198998140737895692 |
20 | 1961831436443431818 |
21 | 19409477239837165874 |