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 A018027 Powers of cube root of 18 rounded down. 21
 1, 2, 6, 18, 47, 123, 324, 849, 2225, 5832, 15284, 40055, 104976, 275114, 721005, 1889568, 4952069, 12978092, 34012224, 89137243, 233605663, 612220032, 1604470380, 4204901941, 11019960576, 28880466844, 75688234942, 198359290368, 519848403193, 1362388228962 (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[18^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 06 2014 *) PROG (Magma) [Floor(18^(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), A018012 (k=13), A018015 (k=14), A018018 (k=15), A018021 (k=16), A018024 (k=17), this sequence (k=18), A018030 (k=19), A018033 (k=20), A018036 (k=21), A018039 (k=22), A018042 (k=23), A018045 (k=24). Sequence in context: A248169 A002529 A217526 * A218759 A295499 A059413 Adjacent sequences: A018024 A018025 A018026 * A018028 A018029 A018030 KEYWORD nonn AUTHOR EXTENSIONS More terms from Vincenzo Librandi, Jan 06 2014 STATUS approved

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Last modified January 28 17:08 EST 2023. Contains 359895 sequences. (Running on oeis4.)