T(n,k)=number of nXk binary matrices with floor((n*k)/2) 1's and rows and columns in lexicographically nondecreasing order.

A180979

T(n,k)=number of nXk binary matrices with floor((n*k)/2) 1's and rows and columns in lexicographically nondecreasing order.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =4a(8) =4a(9) =1a(10) =1a(11) =7a(12) =10a(13) =7a(14) =1a(15) =1a(16) =9a(17) =27a(18) =27a(19) =9a(20) =1a(21) =1a(22) =13a(23) =58a(24) =121a(25) =58a(26) =13a(27) =1a(28) =1a(29) =16

External references