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 | 1 |
2 | 2 |
3 | 12 |
4 | 72 |
5 | 540 |
6 | 5040 |
7 | 53760 |
8 | 658560 |
9 | 9087120 |
10 | 139104000 |
11 | 2343781440 |
12 | 43078210560 |
13 | 857676980160 |
14 | 18390744852480 |
15 | 422504399116800 |
16 | 10353592759910400 |
17 | 269576216304595200 |
18 | 7431814422621388800 |
19 | 216266552026593868800 |
20 | 6624610236968435712000 |