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 | 6 |
2 | 30 |
3 | 420 |
4 | 630 |
5 | 13860 |
6 | 180180 |
7 | 5405400 |
8 | 4594590 |
9 | 96996900 |
10 | 1222160940 |
11 | 40156716600 |
12 | 6692786100 |
13 | 281097016200 |
14 | 1164544781400 |
15 | 72201776446800 |
16 | 2084826294901350 |
17 | 1895296631728500 |
18 | 222622144044300 |
19 | 1823275359722817000 |
20 | 575032998066426900 |
21 | 129519337183533297000 |