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A257425 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I #4 Apr 22 2015 10:40:54

%S 1700100,4137316,18009368,64652177,121832476,356678661,1037269100,

%T 2359203628,7099788830,18202585668,46382073874,125815055340,

%U 344959665026,927065687056,2543518276740,6912822214852,18798048722510,51304587059146

%N Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Column 7 of A257426

%H R. H. Hardin, <a href="/A257425/b257425.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

%Y Cf. A257426

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 22 2015

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Last modified April 30 05:51 EDT 2024. Contains 372119 sequences. (Running on oeis4.)