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A131627
Numbers k such that the decimal expansion of 3^k contains no 1.
1
1, 2, 3, 5, 6, 10, 14, 18, 25, 27, 29, 33, 37, 43
OFFSET
1,2
COMMENTS
I conjecture that 43 is the last term.
MATHEMATICA
Select[ Range@10000, FreeQ[ IntegerDigits[3^# ], 1] &]
PROG
(Magma) [n: n in [0..1000] | not 1 in Intseq(3^n) ]; // Vincenzo Librandi, May 06 2015
CROSSREFS
Cf. similar sequences listed in A131613.
Cf. A007377.
Sequence in context: A286097 A287483 A014853 * A325712 A345170 A237822
KEYWORD
base,fini,nonn
AUTHOR
Shyam Sunder Gupta, Sep 01 2007
STATUS
approved