id:A146255 - OEIS Search Results

Search: id:A146255

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 110-111-011 pattern in any orientation.

+0
1

1, 1, 3, 1, 5, 9, 27, 79, 359, 979, 7545, 28031, 289781, 1662565, 22704081, 184816617, 3459666973, 37715425193, 1006494628185, 14994761556409, 556041103278131, 11700677821513253 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.1.1.0` `.0.0.0.0.1.1.1.0` `.0.1.1.0.1.1.0.0` `.1.1.1.0.0.0.1.1` `.1.1.0.0.0.1.1.1` `.0.0.1.1.0.1.1.0` `.0.1.1.1.0.0.0.0` `.0.1.1.0.0.0.0.0`
	CROSSREFS	`Sequence in context: A029723 A055199 A146916 this_sequence A122366 A103327 A065229` `Adjacent sequences: A146252 A146253 A146254 this_sequence A146256 A146257 A146258`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

page 1

Search completed in 0.002 seconds

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research