[go: up one dir, main page]

login
Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
0

%I #4 Jun 23 2018 12:49:51

%S 1,5,13,93,832,5277,53834,722779,11592019,300465411,11442115258

%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Diagonal of A306172.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A306172.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 23 2018