A000866 2^n written in base 5.

1, 2, 4, 13, 31, 112, 224, 1003, 2011, 4022, 13044, 31143, 112341, 230232, 1011014, 2022033, 4044121, 13143242, 31342034, 113234123, 232023301, 1014102102, 2033204204, 4121413413, 13243332331, 32042220212, 114134440424, 233324431403, 1022204413311

Offset: 0

Author

N. J. A. Sloane, Jacques Haubrich (jhaubrich(AT)freeler.nl)

Keywords

• nonn
• base
• easy

Links

• T. D. Noe, Table of n, a(n) for n = 0..300

Crossrefs

Cf. A000079, A004642, ..., A004655: powers of 2 written in base 10, 3, 4, ..., 16

Cf. A000244, A004656, A004658, A004659, ... : powers of 3 written in base 10, 2, 4, 5, ...

Programs

Mathematica

Table[FromDigits[IntegerDigits[2^n, 5]], {n, 0, 30}] (* T. D. Noe, Jun 20 2012 *)

PARI

a(n)=fromdigits(digits(2^n,5)) \\ M. F. Hasler, Jun 23 2018

Extensions

More terms from Erich Friedman.