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 | 6 |
4 | 82 |
5 | 820 |
6 | 13568 |
7 | 235368 |
8 | 5111748 |
9 | 123205248 |
10 | 3404436312 |
11 | 103998026880 |
12 | 3516027852456 |
13 | 129715202957184 |
14 | 5198615642907360 |
15 | 224652658604613120 |
16 | 10419411912935774736 |
17 | 516120552745366247424 |
18 | 27198524267826237745824 |