T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with every occupancy equal to zero or two.
A221381
T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with every occupancy equal to zero or two.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =1a(7) =2a(8) =0a(9) =0a(10) =0a(11) =4a(12) =0a(13) =1a(14) =0a(15) =0a(16) =8a(17) =9a(18) =4a(19) =0a(20) =0a(21) =0a(22) =16a(23) =0a(24) =25a(25) =0a(26) =1a(27) =0a(28) =1a(29) =32
External references
- oeis: A221381