login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A017962 Powers of sqrt(19) rounded to nearest integer. 1
1, 4, 19, 83, 361, 1574, 6859, 29898, 130321, 568056, 2476099, 10793065, 47045881, 205068241, 893871739, 3896296579, 16983563041, 74029634997, 322687697779, 1406563064942, 6131066257801, 26724698233907 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

MATHEMATICA

Floor[(Sqrt[19])^Range[0, 30]+1/2] (* From Harvey P. Dale, Oct 11 2011 *)

PROG

(PARI) a(n)=round(sqrt(19)^n) \\ Charles R Greathouse IV, Nov 18 2011

(MAGMA) [Round(Sqrt(19)^n): n in [0..30]]; // Vincenzo Librandi, Nov 20 2011

CROSSREFS

Sequence in context: A050914 A017961 A180146 * A192526 A084155 A015530

Adjacent sequences:  A017959 A017960 A017961 * A017963 A017964 A017965

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

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

Last modified February 16 16:51 EST 2012. Contains 205938 sequences.