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%I #6 Mar 02 2023 13:23:55
%S 2727,6681,16878,43050,109995,280255,709626,1780062,4409127,10965130,
%T 27408735,68729661,172613504,433687965,1089178972,2732863735,
%U 6849615759,17159775343,42994448177,107761756345,270179147077,677511074112
%N Number of 0..2 arrays of length n+7 with sum less than 8 in any length 8 subsequence (=less than 50% duty cycle).
%C Column 4 of A212729.
%H R. H. Hardin, <a href="/A212725/b212725.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..1....2....0....1....2....2....0....1....0....0....1....1....1....0....0....0
%e ..1....0....1....1....1....1....0....0....1....2....2....1....0....0....2....0
%e ..2....0....1....0....0....0....0....0....2....1....0....0....2....1....0....2
%e ..1....0....0....1....0....0....2....0....0....1....1....0....0....2....1....1
%e ..1....1....2....0....1....0....0....2....2....2....2....0....0....1....0....2
%e ..0....0....0....0....1....2....0....2....0....0....0....2....0....1....2....1
%e ..1....0....1....1....2....0....1....0....0....0....1....0....1....0....0....0
%e ..0....2....0....0....0....1....0....0....0....0....0....1....0....2....0....1
%e ..0....1....2....0....1....1....0....1....0....1....0....1....0....0....0....0
%e ..1....1....1....0....1....2....1....2....2....0....2....0....1....0....2....0
%Y Cf. A212729.
%K nonn
%O 1,1
%A _R. H. Hardin_, May 25 2012
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