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 | 2 |
3 | 7 |
4 | 25 |
5 | 85 |
6 | 301 |
7 | 1086 |
8 | 3927 |
9 | 14328 |
10 | 52724 |
11 | 194915 |
12 | 723845 |
13 | 2699878 |
14 | 10104968 |
15 | 37933855 |
16 | 142795810 |
17 | 538829973 |
18 | 2037596590 |
19 | 7720231359 |
20 | 29302685197 |
21 | 111398230285 |
22 | 424115408181 |
23 | 1616860117052 |
24 | 6171586558551 |
25 | 23583939930835 |
26 | 90218328876825 |
27 | 345461395176495 |
28 | 1324041033133129 |