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A254806 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I #4 Feb 08 2015 09:19:57

%S 12680,46026,133628,362924,1133390,3598070,11836406,37936764,

%T 125487216,402542545,1314613212,4204596324,13623221472,43708937976,

%U 141416903594,455887528023,1476834502912,4779457689557,15509056463304,50322669190606

%N Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Row 3 of A254804

%H R. H. Hardin, <a href="/A254806/b254806.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 08 2015

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Last modified September 17 14:42 EDT 2024. Contains 375987 sequences. (Running on oeis4.)