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%I #4 Mar 30 2012 17:27:18
%S 5,25,425,16425,13616425,193613616425,181936193613616425,
%T 164181936181936193613616425,
%U 13616164181936164181936181936193613616425,19361361361616418193613616164181936164181936181936193613616425
%N a(1)=5; a(n) is concatenation of squares of digits in a(n-1) (in base 10).
%C If m is a member of the sequence represented by k digits in base 10, all members greater than m are congruent to m mod 10^k.
%e The squares of the digits in the third term, 425, are 16, 4 and 25; hence a(4)=16425.
%Y Cf. A061588.
%K base,easy,nonn
%O 1,1
%A _Matthew Vandermast_, Apr 01 2003
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