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 | 0 |
2 | 0 |
3 | 0 |
4 | 6 |
5 | 54 |
6 | 444 |
7 | 3828 |
8 | 34404 |
9 | 331812 |
10 | 3457224 |
11 | 38902104 |
12 | 472682088 |
13 | 6185876904 |
14 | 86896701072 |
15 | 1305666612144 |
16 | 20907918062064 |
17 | 355572850545648 |
18 | 6401460197543904 |
19 | 121637573726005152 |
20 | 2432837939316094944 |
21 | 51090380436082401504 |
22 | 1123995659389121919168 |