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A250672 Number of (n+1)X(4+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

%I A250672 #6 Jul 23 2025 12:40:09
%S A250672 22119,329226,4008211,41503790,379890972,3135539502,23739860017,
%T A250672 167047195040,1103768366168,6905919873166,41196085958108,
%U A250672 235655369716800,1298966090014725,6928230529332792,35884432642746405,181050004787559210
%N A250672 Number of (n+1)X(4+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
%C A250672 Column 4 of A250676
%H A250672 R. H. Hardin, <a href="/A250672/b250672.txt">Table of n, a(n) for n = 1..210</a>
%H A250672 R. H. Hardin, <a href="/A250672/a250672.txt">Empirical recurrence of order 47</a>
%F A250672 Empirical recurrence of order 47 (see link above)
%e A250672 Some solutions for n=1
%e A250672 ..3..3..0..3..0....2..2..2..2..0....1..1..2..2..1....0..1..0..0..3
%e A250672 ..3..3..1..2..1....2..3..3..1..3....1..1..3..1..2....2..3..3..3..0
%K A250672 nonn
%O A250672 1,1
%A A250672 _R. H. Hardin_, Nov 26 2014