id:A146436 - OEIS Search Results

Search: id:A146436

Displaying 1-1 of 1 results found.

page 1

Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 101-111-101 pattern in any orientation.

+0
1

1, 1, 3, 1, 3, 9, 23, 73, 239, 601, 4153, 14191, 114759, 580339, 5550888, 46368603, 562683992, 5393792447, 97221007962, 1178726702163, 29671069397702, 489244079163479 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`Maximal 8 X 8 example` `.1.1.1.0.0.0.0.0` `.0.1.0.0.1.0.1.0` `.1.1.1.0.1.1.1.0` `.0.0.0.0.1.0.1.0` `.0.1.0.1.0.0.0.0` `.0.1.1.1.0.1.1.1` `.0.1.0.1.0.0.1.0` `.0.0.0.0.0.1.1.1`
	CROSSREFS	`Sequence in context: A082511 A088442 A037095 this_sequence A058842 A155734 A128162` `Adjacent sequences: A146433 A146434 A146435 this_sequence A146437 A146438 A146439`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

page 1

Search completed in 0.002 seconds

Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

AT&T Labs Research