A265979 - OEIS

%I #4 Dec 19 2015 10:39:30

%S 26,5554,320641,40743954,5155545324,620145580463,79392682076391,

%T 10049642106694301,1270705299063997611,161144310163133659463,

%U 20417431959734653902857,2587398791245024591049061

%N Number of nX5 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors less than itself.

%C Column 5 of A265981.

%H R. H. Hardin, <a href="/A265979/b265979.txt">Table of n, a(n) for n = 1..138</a>

%e Some solutions for n=2

%e ..0..3..0..3..0....0..2..4..0..1....2..0..3..0..0....0..0..3..0..2

%e ..0..0..4..3..0....0..2..4..2..1....2..1..0..3..1....0..4..3..0..2

%Y Cf. A265981.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 19 2015