A024065 - OEIS

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A024065

6^n-n^3.

1, 5, 28, 189, 1232, 7651, 46440, 279593, 1679104, 10076967, 60465176, 362795725, 2176780608, 13060691819, 78364161352, 470184981201, 2821109903360, 16926659439823, 101559956662584, 609359740003637 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 0..500`
	FORMULA	`G.f.:(-1-7x^4-19x^3-8x^2+5x)/((6x-1)(x-1)^4) [From Maksym Voznyy (voznyy(AT)mail.ru), Jul 26 2009]`
	PROG	`(MAGMA) [6^n-n^3: n in [0..25]]; // Vincenzo Librandi, Jul 03 2011`
	CROSSREFS	`Sequence in context: A123776 A070779 A189487 * A003467 A064898 A151500` `Adjacent sequences: A024062 A024063 A024064 * A024066 A024067 A024068`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 17:46 EST 2012. Contains 205835 sequences.