id:A146153 - OEIS Search Results

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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only either as two by three or three by two blocks.

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1, 1, 3, 3, 9, 11, 82, 254, 1669, 6665, 68316, 226521, 4561686, 23734103, 704383992, 5907579541, 236178663400, 2337315883467, 150056765859689, 1811327966926780, 189399759509400492, 3276661629995792339, 507766610202105772758 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`Maximal 8 X 8 example` `.1.1.1.0.0.1.1.1` `.1.1.1.0.0.1.1.1` `.0.0.0.0.0.0.0.0` `.1.1.1.0.0.1.1.1` `.1.1.1.0.0.1.1.1` `.0.0.0.0.0.0.0.0` `.1.1.1.0.0.1.1.1` `.1.1.1.0.0.1.1.1`
	CROSSREFS	`Sequence in context: A125027 A005296 A124281 this_sequence A165992 A117153 A045810` `Adjacent sequences: A146150 A146151 A146152 this_sequence A146154 A146155 A146156`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 27 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research