A152692 - OEIS

This site is supported by donations to The OEIS Foundation.

A152692

n*3^n - n*2^n - n*1^n.

0, 0, 8, 54, 256, 1050, 3984, 14406, 50432, 172530, 580240, 1926078, 6328128, 20619690, 66732176, 214742070, 687698944, 2193154530, 6968850192, 22073006382, 69714716480, 219623377050, 690291036688, 2165100175014 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 0..1000`
	FORMULA	`a(n)=(-1)^(n+1)nA083321(n). G.f.: 2x^3(4-21x+36x^2-21x^3)/((1-x)^2(1-3x)^2(1-2*x)^2). [From R. J. Mathar, Dec 12 2008]`
	PROG	`(MAGMA) [n3^n-n2^n-n*1^n: n in [0..30]]; // Vincenzo Librandi, Sep 05 2011`
	CROSSREFS	`Cf. A152691` `Sequence in context: A085537 A085540 A122657 * A037966 A091433 A081899` `Adjacent sequences: A152689 A152690 A152691 * A152693 A152694 A152695`
	KEYWORD	`nonn,easy`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 10 2008`
	EXTENSIONS	`Offset changed from 1 to 0 by Vincenzo Librandi, Sep 05 2011`

Content is available under The OEIS End-User License Agreement .

Last modified February 15 16:28 EST 2012. Contains 205823 sequences.