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*sin(b*Pi/(2*k+1))^2).

A340475

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*sin(b*Pi/(2*k+1))^2).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =6a(5) =1a(6) =1a(7) =29a(8) =29a(9) =1a(10) =1a(11) =139a(12) =500a(13) =139a(14) =1a(15) =1a(16) =666a(17) =8329a(18) =8329a(19) =666a(20) =1a(21) =1a(22) =3191a(23) =138301a(24) =463736a(25) =138301a(26) =3191a(27) =1a(28) =1a(29) =15289

External references