A001219 - OEIS

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A001219

Triangular numbers of form a(a+1)(a+2).

0, 6, 120, 210, 990, 185136, 258474216 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	REFERENCES	`R. K. Guy, Unsolved Problems in Number Theory, D3.`
	LINKS	`Table of n, a(n) for n=1..7.` `Eric Weisstein's World of Mathematics, Triangular Number.`
	CROSSREFS	`Sequence in context: A127726 A117063 A178911 * A224303 A076233 A066581` `Adjacent sequences: A001216 A001217 A001218 * A001220 A001221 A001222`
	KEYWORD	`nonn,fini,full`
	AUTHOR	`N. J. A. Sloane.`
	STATUS	`approved`

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Last modified May 22 18:18 EDT 2013. Contains 225561 sequences.