8238791743
domain: N
Appears in sequences
- Determinant of KK* where K is Kasteleyn-Percus matrix for fool's diamond of order n.at n=6A071102
- a(n) = 4^(2*n^2) * Product_{1<=j,k<=n} (1 - cos(j*Pi/(2*n+1))^2 * cos(k*Pi/(2*n+1))^2).at n=3A340291
- Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = 4^(2*n*k) * Product_{a=1..n} Product_{b=1..k} (1 - cos(a*Pi/(2*n+1))^2 * cos(b*Pi/(2*k+1))^2).at n=24A340430