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Number of strings of n distinct digits from 1-9 that are the last n digits of a square in base 10.
0

%I #5 Mar 30 2012 18:35:34

%S 5,17,85,340,1468,5076,14659,28198,27901

%N Number of strings of n distinct digits from 1-9 that are the last n digits of a square in base 10.

%K nonn,base,fini,full

%O 1,1

%A _David W. Wilson_