T(n,k)=Number of (k*n)Xn binary matrices with all row sums equal and all column sums equal.

Terms

a(0) =2a(1) =2a(2) =4a(3) =2a(4) =8a(5) =14a(6) =2a(7) =22a(8) =182a(9) =140a(10) =2a(11) =72a(12) =3362a(13) =49772a(14) =4322a(15) =2a(16) =254a(17) =69302a(18) =33235358a(19) =113400002a(20) =434542a(21) =2a(22) =926a(23) =1513514a(24) =27896484332a(27) =144109562a(28) =2a(29) =3434a(30) =34306274