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 A250532 Number of (n+1)X(4+1) 0..3 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction 1

%I #4 Nov 24 2014 20:51:14

%S 21326,289035,3091263,28135982,226449945,1660642705,11375090117,

%T 73739279943,459022341499,2761125746280,16191268966687,92865194391622,

%U 523878250294449,2912236729173199,16012243734396908,87174468796623908

%N Number of (n+1)X(4+1) 0..3 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction

%C Column 4 of A250536

%H R. H. Hardin, <a href="/A250532/b250532.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 24 2014

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Last modified February 25 07:35 EST 2024. Contains 370310 sequences. (Running on oeis4.)