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A238939
Powers of 3 without the digit '0' in their decimal expansion.
17
1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683, 177147, 531441, 1594323, 4782969, 1162261467, 94143178827, 282429536481, 2541865828329, 7625597484987, 22876792454961, 617673396283947, 16677181699666569, 278128389443693511257285776231761
OFFSET
1,2
COMMENTS
Conjectured to be finite and complete. See the OEIS wiki page for further information, references and links.
LINKS
M. F. Hasler, Zeroless powers, OEIS wiki, Mar 07 2014.
FORMULA
a(n) = 3^A030700(n).
MATHEMATICA
Select[3^Range[0, 100], DigitCount[#, 10, 0]==0&] (* Paolo Xausa, Oct 07 2023 *)
PROG
(PARI) for(n=0, 99, vecmin(digits(3^n))&& print1(3^n", "))
CROSSREFS
For the zeroless numbers (powers x^n), see A238938, A238939, A238940, A195948, A238936, A195908, A195946, A195945, A195942, A195943, A103662.
For the corresponding exponents, see A007377, A008839, A030700, A030701, A008839, A030702, A030703, A030704, A030705, A030706, A195944.
For other related sequences, see A052382, A027870, A102483, A103663.
Sequence in context: A133494 A352779 A050733 * A351345 A351344 A079846
KEYWORD
nonn,base
AUTHOR
M. F. Hasler, Mar 07 2014
EXTENSIONS
Keyword:fini removed by Jianing Song, Jan 28 2023 as finiteness is only conjectured.
STATUS
approved