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 | 1 |
3 | 3 |
4 | 11 |
5 | 51 |
6 | 289 |
7 | 1940 |
8 | 15056 |
9 | 132579 |
10 | 1305352 |
11 | 14203398 |
12 | 169179053 |
13 | 2188695718 |
14 | 30552880513 |
15 | 457633893249 |
16 | 7319707872140 |
17 | 124497880667346 |
18 | 2243512187621332 |
19 | 42695546402663276 |
20 | 855593102807351931 |