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Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001
1

%I #4 Jul 22 2015 11:48:55

%S 4762,8550,21028,45596,62980,168582,385280,635774,1454932,3865506,

%T 7077140,13911248,37767640,80433874,146256972,363211496,873338176,

%U 1637204674,3569621244,9024085554,18468136328,36852868032,90530978268

%N Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001

%C Column 7 of A260294

%H R. H. Hardin, <a href="/A260293/b260293.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A260294

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 22 2015