1,1

I conjecture that 84 is the last term.

Select[ Range@10000, FreeQ[ IntegerDigits[3^# ], 3] &]

Cf. A007377.

Adjacent sequences: A131626 A131627 A131628 this_sequence A131630 A131631 A131632

Sequence in context: A099619 A027564 A066049 this_sequence A114149 A062974 A065609

base,fini,nonn

Shyam Sunder Gupta (guptass(AT)rediffmail.com), Sep 01 2007