id:A038587 - OEIS Search Results

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

+0
3

3, 6, 12, 12, 18, 21, 27, 27, 30, 36, 42, 42, 48, 48, 54, 54, 63, 69, 69, 69, 75, 78, 84, 84, 90, 96, 102, 102, 102, 102, 114, 114, 120, 123, 129, 129, 135, 141, 141, 141, 144, 150, 156, 156, 168, 168, 174, 174, 174 (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	`Partial sums of A005882.`
	CROSSREFS	`Cf. A038588.` `Sequence in context: A119104 A102253 A081513 this_sequence A090553 A078502 A107974` `Adjacent sequences: A038584 A038585 A038586 this_sequence A038588 A038589 A038590`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.

AT&T Labs Research