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A254799 Number of (n+2)X(3+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 09:15:07

%S 12680,40167,133628,351264,1200192,3633517,12325478,38276893,

%T 128187410,405105944,1331704432,4254116411,13863454578,44643253435,

%U 145048675394,469389806478,1524517587338,4947289882647,16076937597652,52251576307768

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

%C Column 3 of A254804

%H R. H. Hardin, <a href="/A254799/b254799.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 08 2015

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Last modified July 24 14:46 EDT 2024. Contains 374584 sequences. (Running on oeis4.)