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 | 2 |
2 | 6 |
3 | 18 |
4 | 52 |
5 | 152 |
6 | 444 |
7 | 1296 |
8 | 3784 |
9 | 11048 |
10 | 32256 |
11 | 94176 |
12 | 274960 |
13 | 802784 |
14 | 2343840 |
15 | 6843168 |
16 | 19979584 |
17 | 58333184 |
18 | 170311872 |
19 | 497249280 |
20 | 1451788672 |
21 | 4238699648 |
22 | 12375475200 |
23 | 36131927040 |
24 | 105492203776 |
25 | 307999212032 |
26 | 899246685696 |
27 | 2625476203008 |
28 | 7665444201472 |