A368068 - cp's OEIS frontend

A368068 a(n) = Product_{i=1..n, j=1..n} (2i^2 + 5ij + 2j^2).

n	a(n)
0	1
1	9
2	129600
3	40327580160000
4	1311346674278439321600000000
5	13821139470331790817454891043295068160000000000
6	114180111981355345833797461507302737916551512227408406118400000000000000

[1, 9, 129600, 40327580160000, 1311346674278439321600000000, 13821139470331790817454891043295068160000000000, 114180111981355345833797461507302737916551512227408406118400000000000000]

cp's OEIS Frontend

A368068 a(n) = Product_{i=1..n, j=1..n} (2i^2 + 5ij + 2j^2).

Table of values

List of values

cp's OEIS Frontend

A368068 a(n) = Product_{i=1..n, j=1..n} (2*i^2 + 5*i*j + 2*j^2).

Table of values

List of values

A368068 a(n) = Product_{i=1..n, j=1..n} (2i^2 + 5ij + 2j^2).