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A251805 Number of (5+1)X(n+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01 1

%I #4 Dec 09 2014 07:42:55

%S 2430631,474547100,44356434596,2446811684440,90717637876583,

%T 2466029519190492,52256028323545001,902865704126649438,

%U 13158989979297456736,166106632087042847162,1854323843850427384132

%N Number of (5+1)X(n+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01

%C Row 5 of A251801

%H R. H. Hardin, <a href="/A251805/b251805.txt">Table of n, a(n) for n = 1..115</a>

%e Some solutions for n=1

%e ..0..2....0..0....0..2....0..0....0..2....0..2....0..0....0..0....0..0....0..2

%e ..0..2....2..2....0..2....0..2....0..2....0..2....0..2....0..2....0..0....0..0

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 09 2014

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Last modified February 22 12:31 EST 2024. Contains 370255 sequences. (Running on oeis4.)