Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Product_{a=1..n} Product_{b=1..k} (4*sin(a*Pi/(2*n+1))^2 + 4*cos(b*Pi/(2*k+1))^2).

A340476

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Product_{a=1..n} Product_{b=1..k} (4*sin(a*Pi/(2*n+1))^2 + 4*cos(b*Pi/(2*k+1))^2).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =19a(8) =11a(9) =1a(10) =1a(11) =91a(12) =176a(13) =29a(14) =1a(15) =1a(16) =436a(17) =2911a(18) =1471a(19) =76a(20) =1a(21) =1a(22) =2089a(23) =48301a(24) =79808a(25) =11989a(26) =199a(27) =1a(28) =1a(29) =10009

External references