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A017994 Powers of cube root of 7 rounded down. 21
1, 1, 3, 7, 13, 25, 49, 93, 179, 343, 656, 1255, 2401, 4592, 8785, 16807, 32150, 61501, 117649, 225054, 430513, 823543, 1575381, 3013595, 5764801, 11027667, 21095169, 40353607, 77193673, 147666184, 282475249, 540355712, 1033663291, 1977326743, 3782489985 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

MATHEMATICA

Table[Floor[7^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 06 2014 *)

PROG

(MAGMA) [Floor(7^(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), this sequence (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), A018042 (k=23), A018045 (k=24).

Sequence in context: A243737 A269832 A201081 * A218199 A275788 A169914

Adjacent sequences:  A017991 A017992 A017993 * A017995 A017996 A017997

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Vincenzo Librandi, Jan 06 2014

STATUS

approved

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Last modified March 21 22:19 EDT 2019. Contains 321382 sequences. (Running on oeis4.)