A094172 - OEIS

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A094172

Number of quasi-pentominoes in an n X n bounding box.

0, 0, 0, 21, 390, 3427, 18380, 73413, 237459, 659774, 1629116, 3666785, 7651680 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,4`
	LINKS	`Table of n, a(n) for n=0..12.` `Erich Friedman, Illustration of initial terms`
	EXAMPLE	`See A094170 for example of similar sequence.`
	CROSSREFS	`Cf. A094170, A094171.` `Sequence in context: A004370 A001881 A108740 * A145613 A212786 A015677` `Adjacent sequences: A094169 A094170 A094171 * A094173 A094174 A094175`
	KEYWORD	`nonn`
	AUTHOR	`Jon Wild, May 07 2004`
	EXTENSIONS	`Corrected and extended by Jon Wild, May 11 2004`
	STATUS	`approved`

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Last modified May 24 22:42 EDT 2013. Contains 225631 sequences.