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 | 4 |
2 | 16 |
3 | 68 |
4 | 280 |
5 | 1168 |
6 | 4848 |
7 | 20160 |
8 | 83776 |
9 | 348224 |
10 | 1447296 |
11 | 6015488 |
12 | 25002240 |
13 | 103917568 |
14 | 431915008 |
15 | 1795179520 |
16 | 7461349376 |
17 | 31011794944 |
18 | 128895102976 |
19 | 535729963008 |
20 | 2226667929600 |
21 | 9254755975168 |
22 | 38465775239168 |