A017995 - OEIS

A017995

Powers of cube root of 7 rounded to nearest integer.

1, 2, 4, 7, 13, 26, 49, 94, 179, 343, 656, 1255, 2401, 4593, 8786, 16807, 32151, 61502, 117649, 225054, 430514, 823543, 1575381, 3013596, 5764801, 11027668, 21095169, 40353607, 77193673, 147666185, 282475249, 540355712, 1033663292, 1977326743, 3782489985

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OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

MATHEMATICA

Table[Round[7^(n/3)], {n, 0, 50}] (* Vincenzo Librandi, Jan 07 2014 *)

Round[CubeRoot[7]^Range[0, 40]] (* Harvey P. Dale, Aug 04 2023 *)

PROG

(Magma) [Round(7^(n/3)): n in [0..50]]; // Vincenzo Librandi, Jan 07 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), tjis sequence (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), A018034 (k=20), A018037 (k=21), A018040 (k=22), A018043 (k=23), A018046 (k=24).

Sequence in context: A103204 A326174 A366109 * A251654 A303059 A099155

Adjacent sequences: A017992 A017993 A017994 * A017996 A017997 A017998

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Vincenzo Librandi, Jan 07 2014

STATUS

approved