A017996 Powers of cube root of 7 rounded up.

1, 2, 4, 7, 14, 26, 49, 94, 180, 343, 657, 1256, 2401, 4593, 8786, 16807, 32151, 61502, 117649, 225055, 430514, 823543, 1575382, 3013596, 5764801, 11027668, 21095170, 40353607, 77193674, 147666185, 282475249, 540355713, 1033663292, 1977326743, 3782489986

Offset

0,2

Links

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

Mathematica

Table[Ceiling[7^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 09 2014 *)

Prog

(Magma) [Ceiling(7^(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), this sequence (k=7), A018002 (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: A079975 A253511 A076739 * A287154 A024502 A280254

Adjacent sequences: A017993 A017994 A017995 * A017997 A017998 A017999

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Jan 09 2014

Status

approved