A036916 - cp's OEIS frontend

A036916 a(n) = Sum_{k=0..n} binomial(2n-2k,n-k)^2 * binomial(n,k)^2.

n	a(n)
0	1
1	5
2	53
3	761
4	12661
5	229705
6	4410665
7	88127485
8	1813270645
9	38158684745
10	817458330553
11	17767242718285
12	390819348043369
13	8683822363169933
14	194618212789162733
15	4394243766346694161
16	99862206804817230965
17	2282427331053360624713

[1, 5, 53, 761, 12661, 229705, 4410665, 88127485, 1813270645, 38158684745, 817458330553, 17767242718285, 390819348043369, 8683822363169933, 194618212789162733, 4394243766346694161, 99862206804817230965, 2282427331053360624713]

cp's OEIS Frontend

A036916 a(n) = Sum_{k=0..n} binomial(2n-2k,n-k)^2 * binomial(n,k)^2.

Table of values

List of values

cp's OEIS Frontend

A036916 a(n) = Sum_{k=0..n} binomial(2*n-2*k,n-k)^2 * binomial(n,k)^2.

Table of values

List of values

A036916 a(n) = Sum_{k=0..n} binomial(2n-2k,n-k)^2 * binomial(n,k)^2.