id:A038588 - OEIS Search Results

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Sizes of clusters in hexagonal lattice A_2 centered at deep hole.

+0
3

3, 6, 12, 18, 21, 27, 30, 36, 42, 48, 54, 63, 69, 75, 78, 84, 90, 96, 102, 114, 120, 123, 129, 135, 141, 144, 150, 156, 168, 174, 180, 186, 192, 198, 207, 213, 219, 225, 231, 240, 246, 252, 258, 270, 276, 282 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`The hexagonal lattice is the familiar 2-dimensional lattice in which each point has 6 neighbors. This is sometimes called the triangular lattice.`
	LINKS	`G. Nebe and N. J. A. Sloane, Home page for hexagonal (or triangular) lattice A2`
	FORMULA	`unique(A038587).`
	CROSSREFS	`Cf. A005882, A038587.` `Sequence in context: A146952 A038046 A162845 this_sequence A111041 A079830 A160744` `Adjacent sequences: A038585 A038586 A038587 this_sequence A038589 A038590 A038591`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.

AT&T Labs Research