A195256 - cp's OEIS frontend

A195256 O.g.f.: Sum_{n>=0} 4(n+4)^(n-1)x^n/(1+n*x)^n.

n	a(n)
0	1
1	4
2	20
3	104
4	568
5	3296
6	20576
7	139840
8	1044416
9	8617472
10	78605824
11	790252544
12	8709555200
13	104581771264
14	1359831461888
15	19038714208256
16	285585008091136
17	4569377309327360
18	77679482978041856
19	1398230968482660352
20	26566389500682174464

[1, 4, 20, 104, 568, 3296, 20576, 139840, 1044416, 8617472, 78605824, 790252544, 8709555200, 104581771264, 1359831461888, 19038714208256, 285585008091136, 4569377309327360, 77679482978041856, 1398230968482660352, 26566389500682174464]

cp's OEIS Frontend

A195256 O.g.f.: Sum_{n>=0} 4(n+4)^(n-1)x^n/(1+n*x)^n.

Table of values

List of values

cp's OEIS Frontend

A195256 O.g.f.: Sum_{n>=0} 4*(n+4)^(n-1)*x^n/(1+n*x)^n.

Table of values

List of values

A195256 O.g.f.: Sum_{n>=0} 4(n+4)^(n-1)x^n/(1+n*x)^n.