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A187934 Number of (n+2)X5 binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum 1

%I

%S 304,704,7616,50802,435194,3394156,27734942,222519352,1806824700,

%T 14613188788,118539179458,960617285450,7792028797892,63191254464846,

%U 512612165552564,4158105409259042,33732198233141518,273646099830762238

%N Number of (n+2)X5 binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum

%C Column 3 of A187940

%H R. H. Hardin, <a href="/A187934/b187934.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 4X5

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 16 2011

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Last modified October 18 07:42 EDT 2019. Contains 328146 sequences. (Running on oeis4.)