%I #3 Dec 21 2015 12:28:07
%S 25,2141,11044,347576,16386099,325554385,10444421518,364864463172,
%T 9780785065374,322718526988333,10659390930051828,315717305995251778
%N Number of nX7 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.
%C Column 7 of A266131.
%e Some solutions for n=3
%e ..1..1..1..2..1..2..0....1..2..3..2..1..1..0....1..1..1..2..0..2..1
%e ..2..0..0..3..2..0..1....1..0..3..2..1..0..1....0..0..2..1..1..0..0
%e ..1..1..2..1..2..1..0....0..1..2..1..0..2..0....1..2..1..2..2..1..1
%Y Cf. A266131.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 21 2015
