T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

A306166

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =4a(4) =4a(5) =4a(6) =8a(7) =5a(8) =5a(9) =8a(10) =16a(11) =9a(12) =17a(13) =9a(14) =16a(15) =32a(16) =22a(17) =32a(18) =32a(19) =22a(20) =32a(21) =64a(22) =45a(23) =77a(24) =103a(25) =77a(26) =45a(27) =64a(28) =128a(29) =101

External references