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 | 15 |
2 | 156 |
3 | 1400 |
4 | 11655 |
5 | 92925 |
6 | 721140 |
7 | 5496300 |
8 | 41361255 |
9 | 308344025 |
10 | 2282167272 |
11 | 16795140180 |
12 | 123030071437 |
13 | 897791417775 |
14 | 6530377362480 |
15 | 47370038320800 |
16 | 342794475282915 |
17 | 2475479922896925 |
18 | 17843821672113780 |
19 | 128412824128709400 |
20 | 922775179449162501 |
21 | 6622378039719342615 |