T(n,k)=Square root of number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, with every occupancy equal to zero or two.

A221314

T(n,k)=Square root of number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, with every occupancy equal to zero or two.

Terms

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

External references