T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

A317238

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 4, 6, 7 or 8 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) =12a(8) =12a(9) =8a(10) =16a(11) =24a(12) =28a(13) =24a(14) =16a(15) =32a(16) =64a(17) =60a(18) =60a(19) =64a(20) =32a(21) =64a(22) =184a(23) =211a(24) =168a(25) =211a(26) =184a(27) =64a(28) =128a(29) =432

External references