id:A147396 - OEIS Search Results

Search: id:A147396

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 1000-1000-1111-0001-0001 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 5, 13, 45, 145, 549, 1997, 9119, 41645 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.1.1.1.0.0` `.0.0.0.0.0.1.0.0` `.0.0.0.0.0.1.0.0` `.0.0.0.0.0.1.1.1` `.1.1.1.0.0.0.0.0` `.0.0.1.0.0.0.0.0` `.0.0.1.0.0.0.0.0` `.0.0.1.1.1.0.0.0`
	CROSSREFS	`Sequence in context: A006349 A052899 A147200 this_sequence A099972 A060050 A152925` `Adjacent sequences: A147393 A147394 A147395 this_sequence A147397 A147398 A147399`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research