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 A017985 Powers of cube root of 4 rounded down. 21
 1, 1, 2, 4, 6, 10, 16, 25, 40, 64, 101, 161, 256, 406, 645, 1024, 1625, 2580, 4096, 6501, 10321, 16384, 26007, 41285, 65536, 104031, 165140, 262144, 416127, 660561, 1048576, 1664510, 2642245, 4194304, 6658042, 10568983, 16777216, 26632170, 42275935, 67108864 (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[4^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 06 2014 *) PROG (MAGMA) [Floor(4^(n/3)): n in [0..50]]; // Vincenzo Librandi, Jan 06 2014 CROSSREFS Cf. sequences of the type: Powers of cube root of (k) rounded down A017979 (k=2), A017982 (k=3), this sequence (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), A018027 (k=18), A018030 (k=19), A018033 (k=20), A018036 (k=21), A018039 (k=22), A018042 (k=23), A018045 (k=24). Sequence in context: A028445 A006305 A067247 * A327474 A347207 A028488 Adjacent sequences:  A017982 A017983 A017984 * A017986 A017987 A017988 KEYWORD nonn AUTHOR EXTENSIONS More terms from Vincenzo Librandi, Jan 06 2014 STATUS approved

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Last modified September 17 06:16 EDT 2021. Contains 347478 sequences. (Running on oeis4.)