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A080808
a(1) = 4, a(n)= smallest n-th power obtained by inserting digits anywhere in a(n-1).
6
4, 49, 4096, 3748096, 4932784804069376, 44934932784038660743085694310776796224
OFFSET
1,1
COMMENTS
a(7) > 10^49. A simple heuristic argument suggests that a(7) has > .999 probability of having between 88 and 99 digits. - David Wasserman, Dec 28 2007
KEYWORD
base,more,nonn
AUTHOR
Amarnath Murthy, Mar 22 2003
EXTENSIONS
More terms from Ray G. Opao, Sep 20 2004
STATUS
approved