A004661 Powers of 3 written in base 7.

1, 3, 12, 36, 144, 465, 2061, 6243, 25062, 111246, 334104, 1335315, 4342251, 16360113, 55440342, 232651356, 1031614434, 3125446635, 12413006541, 40542026253, 152256115122, 520134351366, 2160436414464

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Mathematica

Table[FromDigits[IntegerDigits[3^n, 7]], {n, 0, 30}] (* Vincenzo Librandi, Jun 07 2013 *)

Prog

(PARI) vector(50, n, n--; fromdigits(digits(3^n, 7))) \\ G. C. Greubel, Oct 13 2018
(Magma) [Seqint(Intseq(3^n, 7)): n in [0..30]]; // G. C. Greubel, Oct 13 2018

Crossrefs

Sequence in context: A303308 A155714 A282022 * A074430 A064028 A326241

Adjacent sequences: A004658 A004659 A004660 * A004662 A004663 A004664

Keyword

nonn,base,easy

Author

N. J. A. Sloane

Status

approved