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A254852 Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum two 1

%I #4 Feb 08 2015 11:32:47

%S 38416,42436,87616,271441,902500,3316041,12013156,42016324,136936804,

%T 443439364,1467043204,5190626116,18319622500,64283545764,214374556036,

%U 710928903556,2357643553444,8182197086116,28358415368644,99194229736900

%N Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum two

%C Column 6 of A254854

%H R. H. Hardin, <a href="/A254852/b254852.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 08 2015

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Last modified April 24 05:47 EDT 2024. Contains 371918 sequences. (Running on oeis4.)