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) |
---|---|
1 | 0 |
2 | 1 |
3 | 15 |
4 | 196 |
5 | 2765 |
6 | 44136 |
7 | 803383 |
8 | 16595776 |
9 | 385606089 |
10 | 9980041600 |
11 | 285072169811 |
12 | 8912986937856 |
13 | 302831517446653 |
14 | 11111352988374016 |
15 | 437883428985915375 |
16 | 18446566229995503616 |
17 | 827237060699483900177 |
18 | 39346347252746333159424 |
19 | 1978418439209309500803979 |
20 | 104857574454528914145280000 |