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 - sin(a*Pi/(2*n+1))^2 * cos(b*Pi/(2*k+1))^2).

A340432

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 - sin(a*Pi/(2*n+1))^2 * cos(b*Pi/(2*k+1))^2).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =13a(5) =1a(6) =1a(7) =121a(8) =181a(9) =1a(10) =1a(11) =1093a(12) =18281a(13) =2521a(14) =1a(15) =1a(16) =9841a(17) =1690781a(18) =2803921a(19) =35113a(20) =1a(21) =1a(22) =88573a(23) =152963281a(24) =2732887529a(25) =430503601a(26) =489061a(27) =1a(28) =1a(29) =797161

External references