%I A157464
%S A157464 4,3,1,1,3,1,3,0,1,2,1,1,1,0,1,0,3,0,0,2,0,1,1,0,1,4,1,0,1,3,0,1,1,0,1,
%T A157464 0,2,0,0,0,1,2,0,0,3,0,0,0,1,1,0,0,1,0,0,0,2,1,0,1,0,2,1,0,1,1,1,1,0,1,
%U A157464 0,0,1,0,1,0,2,0,1,1,0,2,0,0,3,0,0,0,0,1,1,1,0,0,0,0,2,0,0,0,3,0,1,0,1
%N A157464 Number of distinct squares when inserting at most one digit in decimal 
               representation of n.
%C A157464 a(A157465(n)) > 0; a(A000290(n)) > 0.
%H A157464 R. Zumkeller, <a href="b157464.txt">Table of n, a(n) for n = 0..10000</
               a>
%e A157464 a(25) = #{25=5^2, 225=15^2, 256=16^2, 625=25^2} = 4;
%e A157464 a(26) = #{256=16^2} = 1;
%e A157464 a(27) = #{} = 0;
%e A157464 a(28) = #{289=17^2} = 1;
%e A157464 a(29) = #{289=17^2, 529=23^2, 729=27^2} = 3.
%Y A157464 A157466.
%Y A157464 Sequence in context: A083904 A129810 A016500 this_sequence A046546 A139623 
               A080758
%Y A157464 Adjacent sequences: A157461 A157462 A157463 this_sequence A157465 A157466 
               A157467
%K A157464 base,nonn
%O A157464 0,1
%A A157464 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 01 2009