cp's OEIS Frontend

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.

A342282 G.f. = 1-1/H(x) where H(x) = 1 + 2*x + 6*x^2 + 22*x^3 + 92*x^4 + 422*x^5 + 2074*x^6 + ... is a g.f. for the Baxter sequence A001181 with a different offset.

Table of values

n a(n)
0 0
1 2
2 2
3 6
4 24
5 110
6 550
7 2922
8 16242
9 93520
10 553980
11 3359384
12 20777588
13 130696662
14 834244830
15 5393850898
16 35272830054
17 233016356788
18 1553427829684
19 10441803227652
20 70715551631992
21 482201548554776
22 3308810614160224
23 22836540660981088
24 158458108961055864
25 1104984826809182592

List of values

[0, 2, 2, 6, 24, 110, 550, 2922, 16242, 93520, 553980, 3359384, 20777588, 130696662, 834244830, 5393850898, 35272830054, 233016356788, 1553427829684, 10441803227652, 70715551631992, 482201548554776, 3308810614160224, 22836540660981088, 158458108961055864, 1104984826809182592]