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A238253 Number of (n+1)X(6+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise 1

%I

%S 1482,29995,1473792,65450601,3320993180,128727296869,5017308028639,

%T 154350327958339,4704917436206270,118251124084419007,

%U 2946366157111042290,62617673607295964138,1321308517824396221455,24384005345308756975149

%N Number of (n+1)X(6+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise

%C Column 6 of A238255

%H R. H. Hardin, <a href="/A238253/b238253.txt">Table of n, a(n) for n = 1..31</a>

%e Some solutions for n=2

%e ..0..1..0..1..0..1..1....0..0..0..1..1..1..1....0..1..0..1..0..1..1

%e ..0..0..0..1..0..1..1....0..0..0..0..0..0..0....1..0..1..0..1..1..1

%e ..0..1..1..0..1..1..1....1..0..1..0..1..1..1....0..1..0..1..1..0..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 21 2014

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Last modified August 19 23:59 EDT 2022. Contains 356231 sequences. (Running on oeis4.)