A018012 - OEIS

A018012

Powers of cube root of 13 rounded down.

1, 2, 5, 13, 30, 71, 169, 397, 934, 2197, 5165, 12146, 28561, 67156, 157907, 371293, 873034, 2052795, 4826809, 11349443, 26686340, 62748517, 147542764, 346922420, 815730721, 1918055940, 4509991465, 10604499373, 24934727221, 58629889045, 137858491849

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OFFSET

0,2

LINKS

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

MATHEMATICA

Floor[(Power[13, (3)^-1])^Range[0, 40]] (* Harvey P. Dale, Mar 18 2011 *)

Table[Floor[13^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 06 2014 *)

Floor[CubeRoot[13]^Range[0, 40]] (* Harvey P. Dale, Jun 01 2024 *)

PROG

(Magma) [Floor(13^(n/3)): n in [0..40]]; // Vincenzo Librandi, Jan 06 2014

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), this sequence (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), A018042 (k=23), A018045 (k=24).

Sequence in context: A184052 A295057 A309535 * A359673 A216684 A065377

Adjacent sequences: A018009 A018010 A018011 * A018013 A018014 A018015

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Vincenzo Librandi, Jan 06 2014

STATUS

approved