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A068961
Powers of 2 with exactly two 2's in their decimal digits.
0
262144, 524288, 2097152, 134217728, 4294967296, 35184372088832, 9007199254740992, 72057594037927936, 288230376151711744, 576460752303423488, 1152921504606846976, 36893488147419103232
OFFSET
1,1
COMMENTS
Presumably finite, with last term a(28) = 2^186. If there are any further terms they are greater than 2^1000000.
CROSSREFS
Sequence in context: A018867 A057445 A069279 * A224806 A224803 A223336
KEYWORD
easy,nonn,base,fini
AUTHOR
Harvey P. Dale, Mar 31 2002
EXTENSIONS
Comment and keywords from Charles R Greathouse IV, Nov 19 2010.
STATUS
approved