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 | 2 |
2 | 4 |
3 | 20 |
4 | 72 |
5 | 255 |
6 | 874 |
7 | 2903 |
8 | 9336 |
9 | 29578 |
10 | 92528 |
11 | 285992 |
12 | 875912 |
13 | 2662819 |
14 | 8042606 |
15 | 24156735 |
16 | 72211820 |
17 | 214959872 |
18 | 637526372 |
19 | 1884571600 |
20 | 5554575752 |
21 | 16328272725 |
22 | 47884030342 |
23 | 140118979793 |
24 | 409205295972 |
25 | 1192876666588 |
26 | 3471548282192 |