Number of nonnegative integer 5 X 5 matrices with sum of elements equal to n, under row and column permutations.

A052367

Number of nonnegative integer 5 X 5 matrices with sum of elements equal to n, under row and column permutations.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =10a(4) =33a(5) =91a(6) =277a(7) =792a(8) =2341a(9) =6654a(10) =18802a(11) =51508a(12) =138147a(13) =359457a(14) =910756a(15) =2240915a(16) =5365106a(17) =12495406a(18) =28353714a(19) =62725603a(20) =135469991a(21) =285904968a(22) =590347527a(23) =1193817552a(24) =2366907846a(25) =4605225266a(26) =8801576140a(27) =16538061290

External references