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 | 0 |
1 | 1 |
2 | 0 |
3 | 0 |
4 | 2 |
5 | 4 |
6 | 14 |
7 | 56 |
8 | 244 |
9 | 1140 |
10 | 5482 |
11 | 26886 |
12 | 134528 |
13 | 681944 |
14 | 3493524 |
15 | 18057208 |
16 | 94018056 |
17 | 492534414 |
18 | 2593760854 |
19 | 13720433802 |
20 | 72859816050 |
21 | 388218182456 |
22 | 2074683905712 |
23 | 11116464683746 |
24 | 59702675780296 |
25 | 321311045089704 |
26 | 1732487750419756 |
27 | 9357244742176372 |
28 | 50616284630194342 |
29 | 274180772642526672 |
30 | 1487084387418749912 |