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 | 0 |
2 | 0 |
3 | 1 |
4 | 6 |
5 | 25 |
6 | 91 |
7 | 322 |
8 | 1232 |
9 | 5672 |
10 | 32202 |
11 | 209143 |
12 | 1432454 |
13 | 9942517 |
14 | 69363840 |
15 | 490303335 |
16 | 3565609732 |
17 | 27118060170 |
18 | 218183781871 |
19 | 1861370544934 |
20 | 16729411124821 |
21 | 156706028787827 |
22 | 1514442896327792 |
23 | 14999698898942772 |
24 | 151838974745743228 |
25 | 1571513300578303070 |