id:A146183 - OEIS Search Results

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Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 110-111-100 pattern in any orientation.

+0
1

1, 1, 1, 1, 5, 17, 43, 197, 1293, 11263, 110807, 1310257, 21564593, 459131585, 12523288493, 440243859565, 19398701026043, 1090842898014815, 79649624560507867, 7542069381975617255, 913933732625520247505 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.0.0.0` `.0.0.1.1.0.0.0.0` `.1.1.0.1.0.0.0.0` `.1.1.1.0.0.0.0.1` `.1.0.0.0.0.1.1.1` `.0.0.0.0.1.0.1.1` `.0.0.0.0.1.1.0.0` `.0.0.0.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A089527 A146778 A146858 this_sequence A163424 A099451 A133252` `Adjacent sequences: A146180 A146181 A146182 this_sequence A146184 A146185 A146186`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 27 2008`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

AT&T Labs Research