id:A049598 - OEIS Search Results

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12 times triangular numbers.

+0
9

0, 12, 36, 72, 120, 180, 252, 336, 432, 540, 660, 792, 936, 1092, 1260, 1440, 1632, 1836, 2052, 2280, 2520, 2772, 3036, 3312, 3600, 3900, 4212, 4536, 4872, 5220, 5580, 5952, 6336, 6732, 7140, 7560, 7992, 8436, 8892, 9360, 9840, 10332, 10836, 11352 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n) = 6n(n+1). G.f.: A(x) = 12*x/(1-x)^3.`
	CROSSREFS	`Cf. A003154, A027468, A035008.` `Sequence in context: A073762 A043140 A043920 this_sequence A080562 A033196 A060621` `Adjacent sequences: A049595 A049596 A049597 this_sequence A049599 A049600 A049601`
	KEYWORD	`nonn,easy`
	AUTHOR	`Joe Keane (jgk(AT)jgk.org)`
	EXTENSIONS	`More terms from Robert Lozyniak (11(AT)onna.com) and Sarah Gilchrist (s1162763(AT)cedarville.edu)`

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Last modified July 8 18:40 EDT 2008. Contains 141013 sequences.

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