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 | 12 |
3 | 132 |
4 | 1440 |
5 | 15696 |
6 | 171072 |
7 | 1864512 |
8 | 20321280 |
9 | 221481216 |
10 | 2413919232 |
11 | 26309256192 |
12 | 286744043520 |
13 | 3125217447936 |
14 | 34061680852992 |
15 | 371237560860672 |
16 | 4046110560092160 |
17 | 44098475990777856 |
18 | 480628385168228352 |
19 | 5238358910129405952 |
20 | 57092766299534131200 |