login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A018082 Powers of fourth root of 13 rounded to nearest integer. 1
1, 2, 4, 7, 13, 25, 47, 89, 169, 321, 609, 1157, 2197, 4172, 7921, 15041, 28561, 54232, 102978, 195538, 371293, 705022, 1338716, 2541993, 4826809, 9165285, 17403307, 33045903, 62748517, 119148699, 226242996, 429596743, 815730721, 1548933086, 2941158942, 5584757663 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

MATHEMATICA

Round[Surd[13, 4]^Range[0, 30]] (* Harvey P. Dale, Apr 07 2017 *)

Floor[# + 1/2]&/@((Power[13, (4)^-1])^Range[0, 40]) (* Vincenzo Librandi, Apr 22 2017 *)

CROSSREFS

Cf. A011010 (fourth root of 13).

Sequence in context: A079958 A224341 A235684 * A018083 A108361 A082423

Adjacent sequences:  A018079 A018080 A018081 * A018083 A018084 A018085

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 3 11:47 EDT 2021. Contains 346435 sequences. (Running on oeis4.)