id:A146137 - 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 5-point barb 1,1 1,2 2,2 2,3 3,2 in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 149, 307, 3283, 9637, 237685, 792401, 149008323, 690862749, 219427051049, 1350088886833, 717485827831517, 5812692511149509, 9087725403509413361, 98388300257852844757, 382960435361198474272451 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.0.0.0.0.1.0` `.1.1.1.0.0.1.1.1` `.0.0.1.0.0.1.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.1.0.0.0.0.0.0.1` `.1.1.1.0.0.1.1.1` `.0.1.0.0.0.0.1.0`
	CROSSREFS	`Sequence in context: A140023 A105843 A131573 this_sequence A071331 A095842 A142359` `Adjacent sequences: A146134 A146135 A146136 this_sequence A146138 A146139 A146140`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 27 2008`

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Last modified December 20 13:54 EST 2009. Contains 171081 sequences.

AT&T Labs Research