A036915 - cp's OEIS frontend

A036915 a(n) = Sum_{k=0..n} C(2n-2k,n-k)^2 * C(2*n,k)^2.

n	a(n)
0	1
1	8
2	136
3	2996
4	76168
5	2121808
6	62886484
7	1947164948
8	62250464648
9	2038917457664
10	68056394358736
11	2306354482651568
12	79138758509239636
13	2743929765899780336
14	95983445574557632948
15	3383168407446955236196
16	120039826640626408744328

[1, 8, 136, 2996, 76168, 2121808, 62886484, 1947164948, 62250464648, 2038917457664, 68056394358736, 2306354482651568, 79138758509239636, 2743929765899780336, 95983445574557632948, 3383168407446955236196, 120039826640626408744328]

cp's OEIS Frontend

A036915 a(n) = Sum_{k=0..n} C(2n-2k,n-k)^2 * C(2*n,k)^2.

Table of values

List of values

cp's OEIS Frontend

A036915 a(n) = Sum_{k=0..n} C(2*n-2*k,n-k)^2 * C(2*n,k)^2.

Table of values

List of values

A036915 a(n) = Sum_{k=0..n} C(2n-2k,n-k)^2 * C(2*n,k)^2.