%I A035071
%S A035071 2,7,20,64,200,633,2000,6325,20000,63246,200000,632456,2000000,6324556,
%T A035071 20000000,63245554,200000000,632455533,2000000000,6324555321,
%U A035071 20000000000,63245553204,200000000000,632455532034,2000000000000
%N A035071 a(n) is root of square starting with digit 4: first term of runs.
%F A035071 ceiling(sqrt((4*10^n))
%Y A035071 Cf. A067474 (squares), A035076 (2..9).
%Y A035071 Sequence in context: A015518 A083379 A000935 this_sequence A055891 A122877 
               A000150
%Y A035071 Adjacent sequences: A035068 A035069 A035070 this_sequence A035072 A035073 
               A035074
%K A035071 nonn,base
%O A035071 0,1
%A A035071 Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 1998.