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A259426 Number of (n+1) X (7+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0001 0011 or 0111.

%I A259426 #6 May 10 2023 08:25:39
%S A259426 16897,1376077,106118138,8331704179,650266054724,50866278137234,
%T A259426 3975872829274865,310861903249642571,24302876708094703188,
%U A259426 1900054647395205833528,148548577603845580636430
%N A259426 Number of (n+1) X (7+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0001 0011 or 0111.
%C A259426 Column 7 of A259427.
%H A259426 R. H. Hardin, <a href="/A259426/b259426.txt">Table of n, a(n) for n = 1..210</a>
%e A259426 Some solutions for n=1
%e A259426 ..0..0..0..0..1..0..1..1....0..0..0..1..1..1..0..0....1..0..0..0..1..0..1..0
%e A259426 ..0..1..1..1..1..0..0..1....1..1..1..1..0..1..1..0....1..1..0..0..1..0..1..0
%Y A259426 Cf. A259427.
%K A259426 nonn
%O A259426 1,1
%A A259426 _R. H. Hardin_, Jun 26 2015