A340167 - cp's OEIS frontend

A340167 a(n) = 4^(2(n-1)^2) Product_{1<=i,j<=n-1} (1 + sin(iPi/(2n))^2 * sin(jPi/(2n))^2).

n	a(n)
1	1
2	20
3	153425
4	450075709440
5	504979178328238519521
6	216703205118496785026106198144000
7	35568160616301682717925992221900586646216066081
8	2232861039051291914755952483706805051795013026559178904468193280

[1, 20, 153425, 450075709440, 504979178328238519521, 216703205118496785026106198144000, 35568160616301682717925992221900586646216066081, 2232861039051291914755952483706805051795013026559178904468193280]

cp's OEIS Frontend

A340167 a(n) = 4^(2(n-1)^2) Product_{1<=i,j<=n-1} (1 + sin(iPi/(2n))^2 * sin(jPi/(2n))^2).

Table of values

List of values

cp's OEIS Frontend

A340167 a(n) = 4^(2*(n-1)^2) * Product_{1<=i,j<=n-1} (1 + sin(i*Pi/(2*n))^2 * sin(j*Pi/(2*n))^2).

Table of values

List of values

A340167 a(n) = 4^(2(n-1)^2) Product_{1<=i,j<=n-1} (1 + sin(iPi/(2n))^2 * sin(jPi/(2n))^2).