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A018012
Powers of cube root of 13 rounded down.
21
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
OFFSET
0,2
LINKS
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
KEYWORD
nonn
EXTENSIONS
More terms from Vincenzo Librandi, Jan 06 2014
STATUS
approved