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 | 0 |
3 | 6 |
4 | 36 |
5 | 210 |
6 | 4590 |
7 | 85344 |
8 | 1353912 |
9 | 30525384 |
10 | 836587440 |
11 | 22585438656 |
12 | 676820305656 |
13 | 23377203675072 |
14 | 857981143380816 |
15 | 33416782099297344 |
16 | 1417453025671696320 |
17 | 64371985604089220160 |
18 | 3086958605328618687360 |
19 | 157142856384519974847360 |