A054867 - OEIS

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A054867

Configuration of non-attacking princes on an n X n 'rhombus', where a "prince" attacks the four adjacent non-diagonal squares.

2, 17, 689, 139344 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`An n X n 'rhombus' contains (n^2 + (n-1)^2) squares.`
	CROSSREFS	`Cf. A006506.` `Sequence in context: A013094 A013063 A012992 * A167436 A015189 A012944` `Adjacent sequences: A054864 A054865 A054866 * A054868 A054869 A054870`
	KEYWORD	`hard,nonn`
	AUTHOR	`Matti De Craene (Matti.DeCraene(AT)rug.ac.be), May 14 2000`

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.