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 | 0 |
1 | 1 |
2 | 4 |
3 | 30 |
4 | 352 |
5 | 5670 |
6 | 116344 |
7 | 2902830 |
8 | 85326112 |
9 | 2887962870 |
10 | 110620824904 |
11 | 4730842053630 |
12 | 223445584599472 |
13 | 11552029520192070 |
14 | 648869447924011864 |
15 | 39347855472366932430 |
16 | 2562065820090343738432 |
17 | 178286102174571726213270 |