A206801 - cp's OEIS frontend

A206801 a(n) equals the sum of the coefficients of x^(n-1) in A(x)^k as k=1..n, where A(x) = Sum_{n>=0} a(n)*x^n.

n	a(n)
0	1
1	1
2	3
3	22
4	285
5	5476
6	143080
7	4840256
8	205348521
9	10675415800
10	667749546288
11	49499829165414
12	4292944063388838
13	430749877491962328
14	49520529524763502478
15	6467220964216618610444
16	952209872438113961762005
17	157000879970348439087083080

[1, 1, 3, 22, 285, 5476, 143080, 4840256, 205348521, 10675415800, 667749546288, 49499829165414, 4292944063388838, 430749877491962328, 49520529524763502478, 6467220964216618610444, 952209872438113961762005, 157000879970348439087083080]

cp's OEIS Frontend

A206801 a(n) equals the sum of the coefficients of x^(n-1) in A(x)^k as k=1..n, where A(x) = Sum_{n>=0} a(n)*x^n.

Table of values

List of values