A120020 - cp's OEIS frontend

A120020 Coefficients of x^n in the n-th iteration of the g.f. of A120010: a(n) = [x^n] { (1-sqrt(1-4x))/2 o x/(1-nx) o (x-x^2) } for n>=1.

n	a(n)
1	1
2	2
3	9
4	68
5	710
6	9348
7	148085
8	2740672
9	58033953
10	1383923040
11	36705564368
12	1071911496576
13	34179790156473
14	1181725089179936
15	44035415728886145
16	1759481180119564288
17	75042973200676887772
18	3402984761691650083008

[1, 2, 9, 68, 710, 9348, 148085, 2740672, 58033953, 1383923040, 36705564368, 1071911496576, 34179790156473, 1181725089179936, 44035415728886145, 1759481180119564288, 75042973200676887772, 3402984761691650083008]

cp's OEIS Frontend

A120020 Coefficients of x^n in the n-th iteration of the g.f. of A120010: a(n) = [x^n] { (1-sqrt(1-4x))/2 o x/(1-nx) o (x-x^2) } for n>=1.

Table of values

List of values

cp's OEIS Frontend

A120020 Coefficients of x^n in the n-th iteration of the g.f. of A120010: a(n) = [x^n] { (1-sqrt(1-4*x))/2 o x/(1-n*x) o (x-x^2) } for n>=1.

Table of values

List of values

A120020 Coefficients of x^n in the n-th iteration of the g.f. of A120010: a(n) = [x^n] { (1-sqrt(1-4x))/2 o x/(1-nx) o (x-x^2) } for n>=1.