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A251797 Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01 1

%I #4 Dec 09 2014 07:36:03

%S 36552,3352272,294088336,26787273856,2446811684440,224175608341756,

%T 20552060379396424,1884978485974990408,172902962249484086342,

%U 15861042034905778115252,1455015754461632248883532

%N Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01

%C Column 4 of A251801

%H R. H. Hardin, <a href="/A251797/b251797.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 09 2014

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Last modified June 13 05:35 EDT 2024. Contains 373366 sequences. (Running on oeis4.)