A361714 - cp's OEIS frontend

A361714 a(n) = Sum_{k = 0..n-1} (-1)^(n+k+1)binomial(n,k)binomial(n+k-1,k)^2.

n	a(n)
0	0
1	1
2	7
3	82
4	1063
5	14376
6	199204
7	2806770
8	40053031
9	577468684
10	8397778882
11	123029274666
12	1814016998116
13	26898142793068
14	400836647993292
15	5999796281063082
16	90162110212198695
17	1359731143731297396
18	20571691450059355174
19	312134224830052880826
20	4748435338386591995938

[0, 1, 7, 82, 1063, 14376, 199204, 2806770, 40053031, 577468684, 8397778882, 123029274666, 1814016998116, 26898142793068, 400836647993292, 5999796281063082, 90162110212198695, 1359731143731297396, 20571691450059355174, 312134224830052880826, 4748435338386591995938]

cp's OEIS Frontend

A361714 a(n) = Sum_{k = 0..n-1} (-1)^(n+k+1)binomial(n,k)binomial(n+k-1,k)^2.

Table of values

List of values

cp's OEIS Frontend

A361714 a(n) = Sum_{k = 0..n-1} (-1)^(n+k+1)*binomial(n,k)*binomial(n+k-1,k)^2.

Table of values

List of values

A361714 a(n) = Sum_{k = 0..n-1} (-1)^(n+k+1)binomial(n,k)binomial(n+k-1,k)^2.