A057426 - OEIS

This site is supported by donations to The OEIS Foundation.

A057426

Number of asymmetric n-celled polyominoes with 1 hole.

0, 0, 0, 0, 0, 0, 0, 5, 31, 185, 947, 4564, 21004, 93833, 410295, 1765378, 7504024, 31591157, 131982937, 547971412, 2263443059, 9309302775, 38149945673, 155858903955, 635066943350, 2581736396181 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,8`
	LINKS	`Tomas Oliveira e Silva, Enumeration of polyominoes`
	CROSSREFS	`Sequence in context: A078526 A137626 A202753 * A015540 A014987 A108079` `Adjacent sequences: A057423 A057424 A057425 * A057427 A057428 A057429`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Sep 05 2000`

Content is available under The OEIS End-User License Agreement .

Last modified February 17 19:13 EST 2012. Contains 206085 sequences.