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A238252 Number of (n+1)X(5+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise 1

%I

%S 676,9991,284992,6683137,171041320,3320993180,64353451945,

%T 992794904591,15160526139045,192941078342371,2433696873065044,

%U 26454369332527825,285456371748779982,2719536243017821050,25745538460612968692

%N Number of (n+1)X(5+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise

%C Column 5 of A238255

%H R. H. Hardin, <a href="/A238252/b238252.txt">Table of n, a(n) for n = 1..116</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 21 2014

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Last modified September 26 23:44 EDT 2022. Contains 357051 sequences. (Running on oeis4.)