A252482 Exponents n such that the decimal expansion of the power 12^n contains no zeros.

0, 1, 2, 3, 5, 6, 8, 10, 14, 20, 26

Offset

1,3

Comments

Conjectured to be finite.

See A245853 for the actual powers 12^a(n).

Links

Table of n, a(n) for n=1..11.

M. F. Hasler, Zeroless powers, OEIS Wiki, Mar 07 2014

Eric Weisstein's World of Mathematics, Zero

Mathematica

Select[Range[0, 30], DigitCount[12^#, 10, 0]==0&] (* Harvey P. Dale, Apr 06 2019 *)

Prog

(PARI) for(n=0, 9e9, vecmin(digits(12^n))&&print1(n", "))

Crossrefs

For zeroless powers x^n, see A238938 (x=2), A238939, A238940, A195948, A238936, A195908, A245852, A240945 (k=9), A195946 (x=11), A245853, A195945; A195942, A195943, A103662.

For the corresponding exponents, see A007377, A030700, A030701, A008839, A030702, A030703, A030704, A030705, A030706, this sequence A252482, A195944.

For other related sequences, see A052382, A027870, A102483, A103663.

Sequence in context: A332272 A240314 A118053 * A348868 A124145 A188064

Adjacent sequences: A252479 A252480 A252481 * A252483 A252484 A252485

Keyword

nonn,base

Author

M. F. Hasler, Dec 17 2014

Status

approved