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 | 3 |
3 | 9 |
4 | 40 |
5 | 200 |
6 | 1286 |
7 | 9002 |
8 | 74712 |
9 | 672408 |
10 | 6892312 |
11 | 75815432 |
12 | 925733216 |
13 | 12034531808 |
14 | 170656068480 |
15 | 2559841027200 |
16 | 41356302857344 |
17 | 703057148574848 |
18 | 12752569691858048 |
19 | 242298824145302912 |
20 | 4875886476833445888 |
21 | 102393616013502363648 |
22 | 2264106940756915715584 |