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A297014 Number of nXn 0..1 arrays with each 1 adjacent to 3, 4 or 6 king-move neighboring 1s. 0

%I

%S 1,2,8,46,852,74534,11172600,5380073625,8482089381228

%N Number of nXn 0..1 arrays with each 1 adjacent to 3, 4 or 6 king-move neighboring 1s.

%C Diagonal of A297020.

%e Some solutions for n=6

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

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

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

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

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

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

%Y Cf. A297020.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 23 2017

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Last modified September 19 12:57 EDT 2019. Contains 327198 sequences. (Running on oeis4.)