A068961 - OEIS

%I #6 May 13 2013 01:48:12

%S 262144,524288,2097152,134217728,4294967296,35184372088832,

%T 9007199254740992,72057594037927936,288230376151711744,

%U 576460752303423488,1152921504606846976,36893488147419103232

%N Powers of 2 with exactly two 2's in their decimal digits.

%C Presumably finite, with last term a(28) = 2^186. If there are any further terms they are greater than 2^1000000.

%K easy,nonn,base,fini

%O 1,1

%A _Harvey P. Dale_, Mar 31 2002

%E Comment and keywords from _Charles R Greathouse IV_, Nov 19 2010.