id:A034018 - OEIS Search Results

Search: id:A034018

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Numbers that are represented by x^2+xy+y^2 but not primitively.

+0
2

4, 9, 12, 16, 25, 27, 28, 36, 48, 52, 63, 64, 75, 76, 81, 84, 100, 108, 112, 117, 121, 124, 144, 148, 156, 171, 172, 175, 189, 192, 196, 208, 225, 228, 243, 244, 252, 256, 268, 279, 289, 292, 300, 304, 316, 324, 325, 333, 336, 351, 363, 364, 372, 387, 388, 400 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Cf. A034017.` `Sequence in context: A141037 A109424 A034019 this_sequence A047461 A089910 A059269` `Adjacent sequences: A034015 A034016 A034017 this_sequence A034019 A034020 A034021`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jan 29 2009`

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

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