A132305 - cp's OEIS frontend

A132305 Sum of fifth powers of trinomial coefficients: a(n) = Sum_{k=0..2n} trinomial(n,k)^5 where trinomial(n,k) = [x^k] (1 + x + x^2)^n.

n	a(n)
0	1
1	3
2	309
3	32847
4	4775301
5	764206503
6	131689759209
7	23857704965727
8	4487745064421061
9	869024373004460823
10	172218243516497425809
11	34778752398142969125627
12	7134304921516864247956281
13	1482965360342923597534988883
14	311760492785929879483633778049

[1, 3, 309, 32847, 4775301, 764206503, 131689759209, 23857704965727, 4487745064421061, 869024373004460823, 172218243516497425809, 34778752398142969125627, 7134304921516864247956281, 1482965360342923597534988883, 311760492785929879483633778049]

cp's OEIS Frontend

A132305 Sum of fifth powers of trinomial coefficients: a(n) = Sum_{k=0..2n} trinomial(n,k)^5 where trinomial(n,k) = [x^k] (1 + x + x^2)^n.

Table of values

List of values