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 | 20 |
2 | 123 |
3 | 2460 |
4 | 22620 |
5 | 452400 |
6 | 5631696 |
7 | 123774620 |
8 | 1750579287 |
9 | 38886003660 |
10 | 616343677120 |
11 | 13645322944000 |
12 | 228861094261117 |
13 | 5026600983006000 |
14 | 87653141405083368 |
15 | 1904562716219017600 |
16 | 34122352692143937360 |