id:A146217 - OEIS Search Results

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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 101-111-010 pattern in any orientation.

+0
1

1, 1, 3, 1, 7, 1, 112, 79, 2558, 1063, 209802, 27065, 20175581, 2447221, 6126604790, 890042930, 4313282889342, 407961935451, 7026857211622192, 392627753805036, 22754595511201832755, 1023436778780854869, 178462597153459704022556 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.1.0.0.0.0.1.0` `.1.1.1.0.0.1.1.1` `.1.0.1.0.0.1.0.1` `.0.1.0.0.0.0.1.0` `.1.1.1.0.0.1.1.1` `.1.0.1.0.0.1.0.1`
	CROSSREFS	`Sequence in context: A146430 A146281 A146265 this_sequence A146007 A061782 A074625` `Adjacent sequences: A146214 A146215 A146216 this_sequence A146218 A146219 A146220`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research