id:A146060 - OEIS Search Results

Search: id:A146060

Displaying 1-1 of 1 results found.

page 1

Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 2X3 U in any orientation.

+0
1

1, 1, 1, 1, 1, 5, 15, 27, 53, 153, 487, 1719, 7415, 32545, 166197, 903303, 5463687, 37085195, 288519629, 2455679981, 24371430209, 259645240127, 3154594586943, 41721327840785, 629945561496623 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.1.1.0.0.0.1.0.1` `.0.1.0.0.0.1.1.1` `.1.1.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.1.1` `.1.1.1.0.0.0.1.0` `.1.0.1.0.0.0.1.1`
	CROSSREFS	`Sequence in context: A100437 A067533 A110343 this_sequence A076843 A129393 A162525` `Adjacent sequences: A146057 A146058 A146059 this_sequence A146061 A146062 A146063`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 26 2008`

page 1

Search completed in 0.002 seconds

Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

AT&T Labs Research