A018001 Powers of cube root of 9 rounded to nearest integer.

1, 2, 4, 9, 19, 39, 81, 168, 350, 729, 1516, 3154, 6561, 13647, 28388, 59049, 122827, 255490, 531441, 1105442, 2299412, 4782969, 9948976, 20694705, 43046721, 89540788, 186252345, 387420489, 805867092, 1676271101, 3486784401, 7252803827, 15086439912

Offset

0,2

Links

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

Mathematica

Table[Round[9^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 07 2014 *)

Prog

(Magma) [Round(9^(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), A017995 (k=7), this sequence (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: A054135 A171858 A099568 * A018099 A011955 A084172

Adjacent sequences: A017998 A017999 A018000 * A018002 A018003 A018004

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Jan 07 2013

Status

approved