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Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000011
1

%I #4 Jul 03 2015 19:46:56

%S 722,1219,2858,5458,7076,16294,33846,51254,99106,219106,370024,652886,

%T 1414066,2633049,4520036,9213528,18221034,32003265,61343826,123580357,

%U 226046956,418183961,832221248,1576875191,2893948292,5623390081

%N Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000011

%C Column 6 of A259723

%H R. H. Hardin, <a href="/A259721/b259721.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A259721/a259721.txt">Empirical recurrence of order 84</a>

%F Empirical recurrence of order 84 (see link above)

%e Some solutions for n=4

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

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

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

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

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

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

%Y Cf. A259723

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 03 2015