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 | 1 |
2 | 1 |
3 | 8 |
4 | 144 |
5 | 4554 |
6 | 230940 |
7 | 18177900 |
8 | 2196712980 |
9 | 406693854000 |
10 | 115319921466960 |
11 | 50017977456121080 |
12 | 33099984846144881280 |
13 | 33309128229289401091680 |
14 | 50790831819884758635873840 |
15 | 116936359809482874588941613600 |
16 | 405126119455062475269210516705600 |