A251437 - OEIS

%I #4 Dec 02 2014 17:53:24

%S 27486,3204536,360591824,41060404870,4653177899915,528079828285838,

%T 59895416958296448,6794578583576754031,770727122339512484660,

%U 87427440690060912584495,9917248465705842505589194

%N Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements

%C Column 3 of A251442

%H R. H. Hardin, <a href="/A251437/b251437.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 02 2014