A187667 - cp's OEIS frontend

A187667 Coefficient of x^n in (1 + nx + nx^2 + n*x^3)^n.

n	a(n)
0	1
1	1
2	8
3	90
4	1312
5	23625
6	505116
7	12475596
8	348942336
9	10888165395
10	374606200000
11	14077548113398
12	573396296212224
13	25150850370412156
14	1181513742628738624
15	59165118490203450000
16	3145241884988171878400
17	176865209305943158023799
18	10486960289673977419520256

[1, 1, 8, 90, 1312, 23625, 505116, 12475596, 348942336, 10888165395, 374606200000, 14077548113398, 573396296212224, 25150850370412156, 1181513742628738624, 59165118490203450000, 3145241884988171878400, 176865209305943158023799, 10486960289673977419520256]

cp's OEIS Frontend

A187667 Coefficient of x^n in (1 + nx + nx^2 + n*x^3)^n.

Table of values

List of values

cp's OEIS Frontend

A187667 Coefficient of x^n in (1 + n*x + n*x^2 + n*x^3)^n.

Table of values

List of values

A187667 Coefficient of x^n in (1 + nx + nx^2 + n*x^3)^n.