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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A018042 Powers of cube root of 23 rounded down. 21
1, 2, 8, 23, 65, 186, 529, 1504, 4278, 12167, 34601, 98401, 279841, 795830, 2263236, 6436343, 18304103, 52054435, 148035889, 420994376, 1197252006, 3404825447, 9682870660, 27536796142, 78310985281, 222706025200, 633346311281, 1801152661463, 5122238579606 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

MATHEMATICA

Table[Floor[23^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 07 2014 *)

PROG

(MAGMA) [Floor(23^(n/3)): n in [0..40]]; // Vincenzo Librandi, Jan 07 2014

(PARI) a(n)=sqrtnint(23^n, 3) \\ Charles R Greathouse IV, Nov 01 2016

CROSSREFS

Cf. powers of cube root of k rounded down: A017979 (k=2), A017982 (k=3), A017985 (k=4), A017988 (k=5), A017991 (k=6), A017994 (k=7), A018000 (k=9), A018003 (k=10), A018006 (k=11), A018009 (k=12), A018012 (k=13), A018015 (k=14), A018018 (k=15), A018021 (k=16), A018024 (k=17), A018027 (k=18), A018030 (k=19), A018033 (k=20), A018036 (k=21), A018039 (k=22), this sequence (k=23), A018045 (k=24).

Sequence in context: A180664 A294959 A290926 * A304304 A072842 A303861

Adjacent sequences:  A018039 A018040 A018041 * A018043 A018044 A018045

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 07 2014

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 March 18 22:11 EDT 2019. Contains 321305 sequences. (Running on oeis4.)