A183145 - cp's OEIS frontend

A183145 G.f.: Sum_{n>=0} [Sum_{k=0..n} C(n,k)^3x^k]^2 x^n.

n	a(n)
0	1
1	1
2	3
3	18
4	121
5	928
6	6240
7	46617
8	360997
9	2889223
10	23635458
11	195429765
12	1643489944
13	13988813548
14	120403750665
15	1045933596357
16	9158182856203
17	80773120032142
18	716955897008481
19	6400569497637804
20	57436282624514236

[1, 1, 3, 18, 121, 928, 6240, 46617, 360997, 2889223, 23635458, 195429765, 1643489944, 13988813548, 120403750665, 1045933596357, 9158182856203, 80773120032142, 716955897008481, 6400569497637804, 57436282624514236]

cp's OEIS Frontend

A183145 G.f.: Sum_{n>=0} [Sum_{k=0..n} C(n,k)^3x^k]^2 x^n.

Table of values

List of values

cp's OEIS Frontend

A183145 G.f.: Sum_{n>=0} [Sum_{k=0..n} C(n,k)^3*x^k]^2 * x^n.

Table of values

List of values

A183145 G.f.: Sum_{n>=0} [Sum_{k=0..n} C(n,k)^3x^k]^2 x^n.