id:A146194 - OEIS Search Results

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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 101-111-100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 13, 33, 61, 131, 505, 1541, 6387, 29305, 198459, 1139657, 7455433, 47764793, 415936701, 3457440839, 39284046163, 428565300485, 6364187322071 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.0.1.0` `.1.1.1.0.1.1.1.0` `.0.1.0.0.1.0.1.0` `.0.1.1.0.0.0.0.0` `.0.0.0.0.0.1.1.0` `.0.1.0.1.0.0.1.0` `.0.1.1.1.0.1.1.1` `.0.1.0.0.0.0.0.0`
	CROSSREFS	`Sequence in context: A082109 A024839 A146177 this_sequence A124659 A164539 A134864` `Adjacent sequences: A146191 A146192 A146193 this_sequence A146195 A146196 A146197`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 27 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research