Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #16 Sep 04 2021 19:17:31
%S 1,16,100,121,144,169,196,1024,1089,1156,1225,1296,1369,1444,1521,
%T 1600,1681,1764,1849,1936,10000,10201,10404,10609,10816,11025,11236,
%U 11449,11664,11881,12100,12321,12544,12769,12996,13225,13456,13689,13924
%N Squares with initial digit '1'.
%H N. J. A. Sloane, <a href="/A045784/b045784.txt">Table of n, a(n) for n = 1..20000</a>
%F a(n) = A045855(n)^2. - _Michel Marcus_, Sep 04 2021
%t Select[Range[120]^2,First[IntegerDigits[#]]==1&] (* _Harvey P. Dale_, Dec 31 2011 *)
%Y Cf. A045855.
%Y Cf. A045785, A045786, A045787, A045788, A045789, A045791, A045792, A045793.
%K nonn,base
%O 1,2
%A _Jeff Burch_