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 | 1 |
3 | 2 |
4 | 6 |
5 | 40 |
6 | 155 |
7 | 1050 |
8 | 7175 |
9 | 49000 |
10 | 427140 |
11 | 3649800 |
12 | 34634985 |
13 | 359579220 |
14 | 3844835995 |
15 | 44765971250 |
16 | 546966720300 |
17 | 7013372766400 |
18 | 95334357393275 |
19 | 1349949069418950 |
20 | 20031683836289125 |
21 | 310545507994221500 |
22 | 5003248923131208750 |
23 | 83939793691225972500 |