A024051 - OEIS

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A024051

5^n - n^2.

1, 4, 21, 116, 609, 3100, 15589, 78076, 390561, 1953044, 9765525, 48828004, 244140481, 1220702956, 6103515429, 30517577900, 152587890369, 762939452836, 3814697265301, 19073486327764, 95367431640225 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 0..300`
	FORMULA	`a(n) = +8a(n-1) -18a(n-2) +16a(n-3) -5a(n-4)`
	PROG	`(MAGMA) [5^n-n^2: n in [0..35]]; // Vincenzo Librandi, Jun 12 2011`
	CROSSREFS	`Sequence in context: A127111 A190089 A015554 * A180908 A020048 A093426` `Adjacent sequences: A024048 A024049 A024050 * A024052 A024053 A024054`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 07:33 EST 2012. Contains 205708 sequences.