T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with every occupancy equal to zero or two.

A221419

T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with every occupancy equal to zero or two.

Terms

    a(0) =0a(1) =2a(2) =0a(3) =0a(4) =4a(5) =0a(6) =4a(7) =10a(8) =8a(9) =0a(10) =0a(11) =29a(12) =0a(13) =16a(14) =0a(15) =8a(16) =84a(17) =226a(18) =150a(19) =32a(20) =0a(21) =0a(22) =242a(23) =0a(24) =1766a(25) =0a(26) =64a(27) =0a(28) =16a(29) =696

External references