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%I #6 Apr 21 2020 12:48:05
%S 1,4,45,1017,50949,4988145,1073114625,456837553545,427500156271073,
%T 794420496019076757,3247016064162495298253
%N Number of n X n 0..2 arrays with no element equal to any value at offset (-2,-1), (-1,1) or (0,-1) and new values introduced in order 0..2.
%C Diagonal of A276299.
%e Some solutions for n=4
%e ..0..1..0..2. .0..1..2..1. .0..1..0..1. .0..1..2..0. .0..1..2..1
%e ..0..2..0..1. .0..1..2..1. .0..2..0..2. .2..0..2..1. .2..1..0..1
%e ..0..2..0..1. .0..1..2..0. .1..2..0..1. .2..1..2..1. .0..1..0..1
%e ..1..2..0..2. .2..1..2..1. .0..1..0..1. .2..1..2..0. .0..1..2..1
%Y Cf. A276299.
%K nonn
%O 1,2
%A _R. H. Hardin_, Aug 28 2016
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