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A147414 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1001-1111-0110 pattern in any orientation. 0

%I #4 Mar 31 2012 12:35:17

%S 1,1,1,5,1,11,9,68,153,1684,1679,71570,36923,5414251,2307043,

%T 500915628,344960766,114097346426,84657360537,60278905221018,

%U 32340840584502,57465415940963552,25612067643691049,97100554928558169851

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1001-1111-0110 pattern in any orientation.

%e Maximal 8 X 8 example

%e .0.0.1.0.0.1.0.0

%e .0.0.1.1.1.1.0.0

%e .1.1.0.1.1.0.1.1

%e .0.1.1.0.0.1.1.0

%e .0.1.1.0.0.1.1.0

%e .1.1.0.1.1.0.1.1

%e .0.0.1.1.1.1.0.0

%e .0.0.1.0.0.1.0.0

%K nonn

%O 1,4

%A _R. H. Hardin_

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Last modified April 20 02:01 EDT 2024. Contains 371798 sequences. (Running on oeis4.)