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A135219
a(n) = largest number with n+1 digits and without zero digits whose squares have maximal number of zero digits = A135215(n+1).
4
99, 949, 9798, 62498, 997998, 6244998
OFFSET
2,1
KEYWORD
nonn,base
AUTHOR
Artur Jasinski, Nov 23 2007
STATUS
approved