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 | 5 |
4 | 20 |
5 | 72 |
6 | 245 |
7 | 805 |
8 | 2584 |
9 | 8160 |
10 | 25465 |
11 | 78773 |
12 | 242060 |
13 | 740040 |
14 | 2253581 |
15 | 6841525 |
16 | 20719600 |
17 | 62629632 |
18 | 189025585 |
19 | 569820965 |
20 | 1716088004 |
21 | 5164258440 |
22 | 15531389285 |
23 | 46687390213 |
24 | 140287229320 |
25 | 421405027680 |
26 | 1265526821161 |