T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero.

A303896

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =1a(4) =7a(5) =1a(6) =2a(7) =23a(8) =23a(9) =2a(10) =3a(11) =86a(12) =54a(13) =86a(14) =3a(15) =5a(16) =313a(17) =271a(18) =271a(19) =313a(20) =5a(21) =8a(22) =1145a(23) =842a(24) =1659a(25) =842a(26) =1145a(27) =8a(28) =13a(29) =4184

External references