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) |
---|---|
1 | 1 |
2 | 2 |
3 | 15 |
4 | 52 |
5 | 5 |
6 | 4140 |
7 | 203 |
8 | 0 |
9 | 82864869804 |
10 | 678570 |
11 | 10293358946226376485095653 |
12 | 6775685320645824322581483068371419745979053216268760300 |
13 | 4638590332229999353 |
14 | 51724158235372 |
15 | 281600203019560266563340426570 |
16 | 0 |