id:A007970 - OEIS Search Results

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Rhombic numbers.

+0
2

3, 7, 8, 11, 15, 19, 23, 24, 27, 31, 32, 35, 40, 43, 47, 48, 51, 59, 63, 67, 71, 75, 79, 80, 83, 87, 88, 91, 96, 99, 103, 104, 107, 115, 119, 120, 123, 127, 128, 131, 135, 136, 139, 143, 151, 152, 160, 163, 167, 168, 171, 176, 179 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`J. H. Conway, On Happy Factorizations, J. Integer Sequences, Vol. 1, 1998, #1.`
	CROSSREFS	`Every number belongs to exactly one of A000290, A007969, A007970.` `Sequence in context: A078466 A047528 A069122 this_sequence A134258 A028972 A153030` `Adjacent sequences: A007967 A007968 A007969 this_sequence A007971 A007972 A007973`
	KEYWORD	`nonn`
	AUTHOR	`J. H. Conway (conway(AT)math.princeton.edu)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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