A152996 - OEIS

This site is supported by donations to The OEIS Foundation.

A152996

9 times pentagonal numbers: 9*n*(3*n-1)/2.

0, 9, 45, 108, 198, 315, 459, 630, 828, 1053, 1305, 1584, 1890, 2223, 2583, 2970, 3384, 3825, 4293, 4788, 5310, 5859, 6435, 7038, 7668, 8325, 9009, 9720, 10458, 11223, 12015, 12834, 13680, 14553, 15453, 16380, 17334, 18315, 19323 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`a(n) = A000326(n)9 = A062741(n)3.`
	PROG	`(MAGMA) [ 9n(3*n-1)/2: n in [0..50] ];`
	CROSSREFS	`Cf. A000326 (pentagonal numbers), A062741 (pentagonal numbers multiplied by 3).` `Sequence in context: A067536 A139609 A068314 * A188351 A060008 A095166` `Adjacent sequences: A152993 A152994 A152995 * A152997 A152998 A152999`
	KEYWORD	`easy,nonn`
	AUTHOR	`Omar E. Pol (info(AT)polprimos.com), Dec 22 2008`

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

Last modified February 17 06:13 EST 2012. Contains 205991 sequences.