%I A089951
%S A089951 0,1,10,11,12,13,14,95,96,97,98,99,100,101,102,103,104,105,106,107,108,
%T A089951 109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,
%U A089951 126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,895
%N A089951 Numbers having the same leading decimal digits as their squares.
%C A089951 A000030(a(n)) = A002993(a(n)) = A000030(A000290(a(n))).
%F A089951 A number n is in the sequence iff n = 0 or n/10^[log10(n)] lies in one 
               of the half-open intervals [1, sqrt(2)), [sqrt(80), 9) or [sqrt(90), 
               10). - David Wilson (davidwwilson(AT)comcast.net), May 29 2008
%e A089951 895*895 = 801025, therefore 895 is a term: a(55)=895.
%Y A089951 Cf. A018834.
%Y A089951 A143464. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), 
               Aug 17 2008]
%Y A089951 Sequence in context: A057947 A073527 A008707 this_sequence A058945 A072554 
               A138582
%Y A089951 Adjacent sequences: A089948 A089949 A089950 this_sequence A089952 A089953 
               A089954
%K A089951 nonn,base
%O A089951 1,3
%A A089951 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 12 2004