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 | 120 |
2 | 53550 |
3 | 28973100 |
4 | 17036182800 |
5 | 10496595041856 |
6 | 6664244456261700 |
7 | 4320449008019199000 |
8 | 2844426519643185378000 |
9 | 1894935877560218667820800 |
10 | 1274265873172890987907535424 |
11 | 863426385292565961502380501120 |
12 | 588738285265666300220495724048000 |
13 | 403569219885941102398195162309056000 |