A017961 - OEIS

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A017961

Powers of sqrt(19) rounded down.

1, 4, 19, 82, 361, 1573, 6859, 29897, 130321, 568056, 2476099, 10793065, 47045881, 205068240, 893871739, 3896296578, 16983563041, 74029634996, 322687697779, 1406563064942, 6131066257801, 26724698233906 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 0..700`
	FORMULA	`a(n) = Floor(Sqrt(19^n)); [From Vincenzo Librandi, Jun 24 2011]`
	PROG	`(MAGMA) [Floor(Sqrt(19^n)): n in [0..30]]; // Vincenzo Librandi, Jun 24 2011` `(PARI) a(n)=sqrtint(19^n) \\ Charles R Greathouse IV, Nov 18 2011`
	CROSSREFS	`Sequence in context: A181300 A027240 A050914 * A180146 A017962 A192526` `Adjacent sequences: A017958 A017959 A017960 * A017962 A017963 A017964`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 16 07:39 EST 2012. Contains 205881 sequences.