%I A067472
%S A067472 25,225,2025,20164,200704,2002225,20007729,200024449,2000057284,
%T A067472 20000182084,200000361796,2000001237796,20000000402496,200000010642496,
%U A067472 2000000040249600,20000000215721449,200000000447251216
%N A067472 Smallest n-digit square starting with 2.
%F A067472 a(n) = ceiling(sqrt(2*10^(n-1)))^2, n>1. - Rick L. Shepherd (rshepherd2(AT)hotmail.com), 
               Feb 14 2002
%o A067472 (PARI) for(n=2,25,a=ceil(sqrt(2*10^(n-1)))^2; print(a))
%Y A067472 Cf. A035069 (roots), A045785, A067479 (2..9).
%Y A067472 Sequence in context: A065779 A095241 A061839 this_sequence A058426 A048384 
               A030485
%Y A067472 Adjacent sequences: A067469 A067470 A067471 this_sequence A067473 A067474 
               A067475
%K A067472 base,easy,nonn
%O A067472 2,1
%A A067472 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Feb 09 2002
%E A067472 More terms from Rick L. Shepherd (rshepherd2(AT)hotmail.com), Feb 14 
               2002