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A000866 2^n written in base 5. 7
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
MATHEMATICA
Table[FromDigits[IntegerDigits[2^n, 5]], {n, 0, 30}] (* T. D. Noe, Jun 20 2012 *)
PROG
(PARI) a(n)=fromdigits(digits(2^n, 5)) \\ M. F. Hasler, Jun 23 2018
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, ...
Sequence in context: A148225 A148226 A004644 * A320424 A148227 A148228
KEYWORD
nonn,base,easy
AUTHOR
N. J. A. Sloane, Jacques Haubrich (jhaubrich(AT)freeler.nl)
EXTENSIONS
More terms from Erich Friedman.
STATUS
approved

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Last modified April 12 06:13 EDT 2024. Contains 371623 sequences. (Running on oeis4.)