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A297869 Number of n X n 0..1 arrays with every element equal to 2, 3 or 5 king-move adjacent elements, with upper left element zero.

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%I A297869 #6 May 03 2020 15:39:02
%S A297869 0,1,0,10,80,887,13778,428609,15589226,918365908
%N A297869 Number of n X n 0..1 arrays with every element equal to 2, 3 or 5 king-move adjacent elements, with upper left element zero.
%C A297869 Diagonal of A297876.
%e A297869 Some solutions for n=7
%e A297869 ..0..1..1..1..0..1..1. .0..0..1..1..0..0..1. .0..0..1..1..1..0..0
%e A297869 ..0..0..1..0..1..0..1. .1..0..0..1..0..1..1. .1..0..0..1..0..1..0
%e A297869 ..1..1..1..0..1..0..0. .1..1..1..0..0..0..1. .1..1..1..1..0..1..0
%e A297869 ..1..0..1..0..1..1..0. .0..0..0..1..0..0..0. .0..0..0..0..0..1..0
%e A297869 ..1..0..0..1..0..0..1. .0..1..1..0..1..1..0. .0..1..1..1..1..0..0
%e A297869 ..0..1..1..1..1..1..0. .1..0..0..0..0..0..1. .1..0..0..0..0..0..1
%e A297869 ..0..0..0..0..0..0..0. .1..1..1..1..1..1..1. .1..1..1..1..1..1..1
%Y A297869 Cf. A297876.
%K A297869 nonn
%O A297869 1,4
%A A297869 _R. H. Hardin_, Jan 07 2018

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