T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

A305489

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 6 or 8 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) =14a(8) =14a(9) =2a(10) =3a(11) =33a(12) =19a(13) =33a(14) =3a(15) =5a(16) =70a(17) =27a(18) =27a(19) =70a(20) =5a(21) =8a(22) =157a(23) =137a(24) =65a(25) =137a(26) =157a(27) =8a(28) =13a(29) =346

External references