%I #6 Apr 21 2020 12:41:54
%S 1,6,46,570,11624,421793,26631796,2976710318,583268028453,
%T 200678789857876,121566258532250545,129693591124665273124,
%U 243968254768827185678164
%N Number of n X n 0..2 arrays with no element equal to any value at offset (0,-1), (-1,-2) or (-2,0) and new values introduced in order 0..2.
%C Diagonal of A275037.
%e Some solutions for n=4
%e ..0..1..0..2. .0..1..2..1. .0..1..0..2. .0..1..2..0. .0..1..0..1
%e ..1..2..1..2. .0..2..1..0. .0..2..1..2. .2..0..2..0. .0..2..1..0
%e ..1..0..2..0. .1..0..1..0. .1..0..1..0. .1..2..1..2. .1..0..2..0
%e ..0..1..0..1. .2..1..0..2. .2..1..0..1. .0..1..0..1. .2..1..2..1
%Y Cf. A275037.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jul 14 2016