OFFSET
1,1
EXAMPLE
The first number is 5 because 2^5 is 32, which contains 3, the first digit of Pi.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Sergei Bernstein (sergeibernstein(AT)gmail.com), Feb 22 2005
EXTENSIONS
a(11)-a(14) from Giovanni Resta, Nov 14 2013
STATUS
approved