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A018000 Powers of cube root of 9 rounded down. 21
1, 2, 4, 9, 18, 38, 81, 168, 350, 729, 1516, 3154, 6561, 13647, 28387, 59049, 122826, 255490, 531441, 1105441, 2299411, 4782969, 9948976, 20694704, 43046721, 89540787, 186252344, 387420489, 805867091, 1676271101, 3486784401, 7252803826, 15086439912 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

MAPLE

A018000:=n->floor(9^(n/3)); seq(A018000(n), n=0..50); # Wesley Ivan Hurt, Jan 16 2014

MATHEMATICA

Table[Floor[9^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 06 2014 *)

PROG

(MAGMA) [Floor(9^(n/3)): n in [0..50]]; // 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), this sequence (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), A018042 (k=23), A018045 (k=24).

Sequence in context: A215253 A079580 A327739 * A329668 A320222 A036610

Adjacent sequences:  A017997 A017998 A017999 * A018001 A018002 A018003

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 06 2014

STATUS

approved

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Last modified July 11 14:30 EDT 2020. Contains 335626 sequences. (Running on oeis4.)