1,2

I conjecture that 59 is the last term.

Select[ Range@10000, FreeQ[ IntegerDigits[3^# ], 2] &]

Cf. A007377.

Sequence in context: A029930 A140119 A011402 this_sequence A044952 A003485 A047466

Adjacent sequences: A131622 A131623 A131624 this_sequence A131626 A131627 A131628

base,fini,nonn

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