A120021 - cp's OEIS frontend

A120021 Coefficients of x^n in the (n+1)-th self-composition of the g.f. of A120010: a(n) = [x^n] { (1-sqrt(1-4x))/2 o x/(1-(n+1)x) o (x-x^2) } for n>=1.

n	a(n)
1	1
2	3
3	16
4	130
5	1416
6	19236
7	312512
8	5906502
9	127313320
10	3082645951
11	82848394752
12	2447576485341
13	78846484722208
14	2750891289611235
15	103344880800464896
16	4159577854374314795
17	178587276548655542112
18	8147334149686335230068

[1, 3, 16, 130, 1416, 19236, 312512, 5906502, 127313320, 3082645951, 82848394752, 2447576485341, 78846484722208, 2750891289611235, 103344880800464896, 4159577854374314795, 178587276548655542112, 8147334149686335230068]

cp's OEIS Frontend

A120021 Coefficients of x^n in the (n+1)-th self-composition of the g.f. of A120010: a(n) = [x^n] { (1-sqrt(1-4x))/2 o x/(1-(n+1)x) o (x-x^2) } for n>=1.

Table of values

List of values

cp's OEIS Frontend

A120021 Coefficients of x^n in the (n+1)-th self-composition of the g.f. of A120010: a(n) = [x^n] { (1-sqrt(1-4*x))/2 o x/(1-(n+1)*x) o (x-x^2) } for n>=1.

Table of values

List of values

A120021 Coefficients of x^n in the (n+1)-th self-composition of the g.f. of A120010: a(n) = [x^n] { (1-sqrt(1-4x))/2 o x/(1-(n+1)x) o (x-x^2) } for n>=1.