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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

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

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).

Programs

Magma

[Round(7^(n/3)): n in [0..50]]; // Vincenzo Librandi, Jan 07 2014

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 *)

Extensions

More terms from Vincenzo Librandi, Jan 07 2014