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%I #4 Jul 14 2015 07:55:29
%S 5088,13366,42094,89948,185370,660896,1838884,3846432,10411860,
%T 34278032,85219868,194549646,586417692,1722858971,4107474218,
%U 10494264900,31635757784,85184012548,207122994200,570030592938,1645562710914
%N Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000111
%C Column 7 of A260070
%H R. H. Hardin, <a href="/A260069/b260069.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..0..0..1..1..0..0..1..1....0..0..1..0..0..1..0..0..1
%e ..0..0..0..1..1..0..0..1..0....0..0..1..0..0..1..0..0..0
%e ..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0
%e ..1..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..1
%e ..0..0..0..1..1..0..0..1..1....1..1..0..0..1..0..0..1..1
%e ..0..0..0..1..1..0..0..0..0....0..0..0..0..1..0..0..0..1
%Y Cf. A260070
%K nonn
%O 1,1
%A _R. H. Hardin_, Jul 14 2015
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