A018002 Powers of cube root of 9 rounded up.

1, 3, 5, 9, 19, 39, 81, 169, 351, 729, 1517, 3155, 6561, 13648, 28388, 59049, 122827, 255491, 531441, 1105442, 2299412, 4782969, 9948977, 20694705, 43046721, 89540788, 186252345, 387420489, 805867092, 1676271102, 3486784401, 7252803827, 15086439913, 31381059609

Offset

0,2

Links

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

Mathematica

Table[Ceiling[9^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 09 2014 *)

Prog

(Magma) [Ceiling(9^(n/3)): n in [0..50]]; // Vincenzo Librandi, Jan 09 2014

Crossrefs

Cf. powers of cube root of k ceiling up: A017981 (k=2), A017984 (k=3), A017987 (k=4), A017990 (k=5), A017993 (k=6), A017996 (k=7), this sequence (k=9), A018005 (k=10), A018008 (k=11), A018011 (k=12), A018014 (k=13), A018017 (k=14), A018020 (k=15), A018023 (k=16), A018026 (k=17), A018029 (k=18), A018032 (k=19), A018035 (k=20), A018038 (k=21), A018041 (k=22), A018044 (k=23), A018047 (k=24).

Sequence in context: A071384 A291398 A078066 * A255822 A227234 A192480

Adjacent sequences: A017999 A018000 A018001 * A018003 A018004 A018005

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Jan 09 2014

Status

approved