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A018028
Powers of cube root of 18 rounded to nearest integer.
22
1, 3, 7, 18, 47, 124, 324, 849, 2225, 5832, 15284, 40056, 104976, 275115, 721005, 1889568, 4952069, 12978092, 34012224, 89137243, 233605663, 612220032, 1604470380, 4204901941, 11019960576, 28880466844, 75688234942, 198359290368, 519848403193, 1362388228962
OFFSET
0,2
LINKS
MATHEMATICA
Table[Round[18^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 08 2014 *)
Round[Surd[18, 3]^Range[0, 40]] (* Harvey P. Dale, Nov 24 2017 *)
PROG
(Magma) [Round(18^(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), this sequence (k=18), A018031 (k=19), A018034 (k=20), A018037 (k=21), A018040 (k=22), A018043 (k=23), A018046 (k=24).
Sequence in context: A027971 A219233 A211276 * A045994 A101308 A279482
KEYWORD
nonn
EXTENSIONS
More terms from Vincenzo Librandi, Jan 08 2014
STATUS
approved