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A004658

Powers of 3 written in base 4.

1, 3, 21, 123, 1101, 3303, 23121, 202023, 1212201, 10303203, 32122221, 223033323, 2001233301, 12011033103, 102033231321, 312233021223, 2210031131001, 13230220113003, 113011321011021, 1011101223033123

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OFFSET

0,2

LINKS

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

MATHEMATICA

Table[FromDigits[IntegerDigits[3^n, 4]], {n, 0, 40}] (* Vincenzo Librandi, Jun 07 2013 *)

PROG

(PARI) a(n, b=4, m=3)=fromdigits(digits(m^n, b)) \\ M. F. Hasler, Jun 22 2018

(Magma) [Seqint(Intseq(3^n, 4)): n in [0..30]]; // G. C. Greubel, Sep 10 2018

CROSSREFS

Cf. A000244, A004656, A004659, ... : powers of 3 written in base 10, 2, 5, ...

Cf. A000079, A004643, ..., A004655: powers of 2 written in base 10, 4, 5, ..., 16

Sequence in context: A322185 A171137 A144884 * A034552 A356889 A220616

Adjacent sequences: A004655 A004656 A004657 * A004659 A004660 A004661

KEYWORD

nonn,base,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

URL: https://oeis.org/A004658

⇱ A004658 - OEIS