id:A038591 - OEIS Search Results

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Sizes of clusters in hexagonal lattice A_2 with 3-fold symmetry.

+0
2

1, 3, 6, 7, 12, 13, 18, 19, 21, 27, 30, 31, 36, 37, 42, 43, 48, 54, 55, 61, 63, 69, 73, 75, 78, 84, 85, 90, 91, 96, 97, 102, 109, 114, 120, 121, 123, 127, 129, 135, 139, 141, 144, 150, 151, 156, 163, 168, 169, 174, 180 (list; graph; listen)

	OFFSET	`0,2`
	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`
	CROSSREFS	`Union of A038588 and A038590.` `Sequence in context: A104463 A072757 A032849 this_sequence A138038 A095029 A028792` `Adjacent sequences: A038588 A038589 A038590 this_sequence A038592 A038593 A038594`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research