T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without 2-loops.

A221114

T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without 2-loops.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =0a(9) =0a(10) =0a(11) =7a(12) =8a(13) =0a(14) =0a(15) =0a(16) =38a(17) =178a(18) =51a(19) =0a(20) =0a(21) =0a(22) =190a(23) =2952a(24) =3706a(25) =304a(26) =0a(27) =0a(28) =0a(29) =918

External references