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 | 2 |
2 | 18 |
3 | 504 |
4 | 32760 |
5 | 4127760 |
6 | 895723920 |
7 | 308129028480 |
8 | 158070191610240 |
9 | 115391239875475200 |
10 | 115506631115350675200 |
11 | 153854832645647099366400 |
12 | 266015005644323834804505600 |
13 | 584700982406223788900303308800 |
14 | 1605004196705084300531332582656000 |