T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A317604
T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =8a(5) =4a(6) =8a(7) =23a(8) =23a(9) =8a(10) =16a(11) =65a(12) =100a(13) =65a(14) =16a(15) =32a(16) =192a(17) =435a(18) =435a(19) =192a(20) =32a(21) =64a(22) =569a(23) =1959a(24) =3047a(25) =1959a(26) =569a(27) =64a(28) =128a(29) =1709
External references
- oeis: A317604