A316414 - OEIS

%I #4 Jul 02 2018 09:02:50

%S 1,4,14,93,1265,33380,1459806,110043463,14254922771,3155289459645,

%T 1195938340938067,776257336467287589

%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Diagonal of A316420.

%e Some solutions for n=5

%e ..0..0..0..0..0. .0..0..0..1..0. .0..0..1..0..0. .0..0..0..0..0

%e ..0..1..1..0..0. .1..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0

%e ..0..1..0..1..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0

%e ..0..0..1..0..0. .0..0..0..0..1. .0..0..1..0..1. .0..0..0..0..1

%e ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..1..0..0

%Y Cf. A316420.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 02 2018