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A260368 Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111 1

%I #4 Jul 23 2015 13:12:53

%S 1378,2047,5806,12858,15440,38370,98032,140897,274244,711411,1222386,

%T 2119236,5089490,9954145,17052298,37181977,77288928,137928650,

%U 279219594,589162026,1099902766,2142331748,4472874520,8654078147,16619752932

%N Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111

%C Column 6 of A260370

%H R. H. Hardin, <a href="/A260368/b260368.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%Y Cf. A260370

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 23 2015

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Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)