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A254490 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I #4 Jan 31 2015 10:05:06

%S 20872192,1608739904,111699091200,8153154979328,566704583699968,

%T 39847094492435712,2791393651770044928,195729911005053100544,

%U 13689397617466091628032,959275333788055608747520

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

%C Column 7 of A254491

%H R. H. Hardin, <a href="/A254490/b254490.txt">Table of n, a(n) for n = 1..59</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 31 2015

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Last modified September 18 02:36 EDT 2024. Contains 375995 sequences. (Running on oeis4.)