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A134845
Smallest number k not divisible by 10 such that k^2 contains exactly n zeros.
13
32, 101, 448, 1001, 10004, 10001, 100004, 100001, 1000004, 1000001, 10000004, 10000001, 100000004, 100000001, 1000000004, 1000000001
OFFSET
1,1
EXAMPLE
a(1)=32 because 32 is smallest number whose square contains exactly one zero.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Artur Jasinski, Nov 13 2007, Nov 16 2007
EXTENSIONS
a(9)-a(16) from Arkadiusz Wesolowski, Jan 19 2013
STATUS
approved