A017949 - OEIS

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A017949

Powers of sqrt(15) rounded down.

1, 3, 15, 58, 225, 871, 3375, 13071, 50625, 196069, 759375, 2941046, 11390625, 44115700, 170859375, 661735513, 2562890625, 9926032708, 38443359375, 148890490631, 576650390625, 2233357359474, 8649755859375 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 0..800`
	FORMULA	`a(n) = Floor(Sqrt(15^n)); [From Vincenzo Librandi, Jun 24 2011]`
	PROG	`(MAGMA) [Floor(Sqrt(15^n)): n in [0..30]]; // Vincenzo Librandi, Jun 24 2011` `(PARI) a(n)=sqrtint(15^n) \\ Charles R Greathouse IV, Nov 18 2011`
	CROSSREFS	`Sequence in context: A125673 A123007 A121695 * A049178 A049150 A062473` `Adjacent sequences: A017946 A017947 A017948 * A017950 A017951 A017952`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.