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A146470 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1110-0111 pattern in any orientation. 0
1, 1, 1, 1, 5, 7, 19, 35, 463, 969, 22041, 58321, 1701021, 5460085, 383363779, 1519453757, 207202049471, 1016198618209, 232688832421803, 1403058689772715, 628307720419918447, 4670279652295220195, 3965584480917103684129 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,5
LINKS
EXAMPLE
Maximal 8 X 8 example
.0.1.0.0.0.0.1.0
.0.1.1.0.0.1.1.0
.0.1.1.0.0.1.1.0
.0.0.1.0.0.1.0.0
.1.0.0.0.0.0.0.1
.1.1.0.0.0.0.1.1
.1.1.0.0.0.0.1.1
.0.1.0.0.0.0.1.0
CROSSREFS
Sequence in context: A200178 A064101 A018581 * A296935 A106987 A342738
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified September 11 23:02 EDT 2024. Contains 375842 sequences. (Running on oeis4.)