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 | 0 |
2 | 1 |
3 | 3 |
4 | 18 |
5 | 70 |
6 | 330 |
7 | 1386 |
8 | 6160 |
9 | 26496 |
10 | 115965 |
11 | 502975 |
12 | 2194302 |
13 | 9553050 |
14 | 41687737 |
15 | 181908195 |
16 | 794770200 |
17 | 3474159304 |
18 | 15199740171 |
19 | 66541189473 |
20 | 291507681070 |
21 | 1277822445690 |
22 | 5604712643376 |
23 | 24596642511628 |
24 | 108001447419048 |
25 | 474459925386600 |
26 | 2085333645995275 |
27 | 9169506194833881 |