T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

A304697

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 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) =16a(8) =16a(9) =2a(10) =3a(11) =45a(12) =56a(13) =45a(14) =3a(15) =5a(16) =120a(17) =178a(18) =178a(19) =120a(20) =5a(21) =8a(22) =333a(23) =669a(24) =918a(25) =669a(26) =333a(27) =8a(28) =13a(29) =928

External references