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 A018034 Powers of cube root of 20 rounded to nearest integer. 22
 1, 3, 7, 20, 54, 147, 400, 1086, 2947, 8000, 21715, 58945, 160000, 434307, 1178890, 3200000, 8686136, 23577802, 64000000, 173722727, 471556032, 1280000000, 3474454549, 9431120637, 25600000000, 69489090985, 188622412730, 512000000000, 1389781819697 (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[Round[20^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 08 2014 *) PROG (MAGMA) [Round(20^(n/3)): n in [0..40]]; // Vincenzo Librandi, Jan 08 2014 CROSSREFS Cf. powers of cube root of k rounded up: A017980 (k=2), A017983 (k=3), A017986 (k=4), A017989 (k=5), A017992 (k=6), A017995 (k=7), A018001 (k=9), A018004 (k=10), A018007 (k=11), A018010 (k=12), A018013 (k=13), A018016 (k=14), A018019 (k=15), A018022 (k=16), A018025 (k=17), A018028 (k=18), A018031 (k=19), this sequence (k=20), A018037 (k=21), A018040 (k=22), A018043 (k=23), A018046 (k=24). Sequence in context: A003097 A109220 A293734 * A293735 A293736 A293737 Adjacent sequences:  A018031 A018032 A018033 * A018035 A018036 A018037 KEYWORD nonn AUTHOR EXTENSIONS More terms from Vincenzo Librandi, Jan 08 2014 STATUS approved

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Last modified April 19 01:29 EDT 2019. Contains 322237 sequences. (Running on oeis4.)