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A253738 Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically 1

%I #4 Jan 11 2015 08:07:18

%S 70372,60296,102616,345304,1059528,3369876,11094376,37875928,

%T 127687424,433506104,1487290348,5103062308,17364021560,59364164632,

%U 203858329876,698483613236,2384062595156,8159195917844,27983085762376,95827264556920

%N Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically

%C Column 6 of A253740

%H R. H. Hardin, <a href="/A253738/b253738.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 11 2015

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Last modified February 26 22:44 EST 2024. Contains 370354 sequences. (Running on oeis4.)