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Squares with initial digit '3'.
10

%I #11 Sep 04 2021 17:37:06

%S 36,324,361,3025,3136,3249,3364,3481,3600,3721,3844,3969,30276,30625,

%T 30976,31329,31684,32041,32400,32761,33124,33489,33856,34225,34596,

%U 34969,35344,35721,36100,36481,36864,37249,37636,38025,38416,38809

%N Squares with initial digit '3'.

%F a(n) = A045857(n)^2. - _Michel Marcus_, Sep 04 2021

%t Select[Range[200]^2,First[IntegerDigits[#]]==3&] (* _Harvey P. Dale_, Apr 21 2011 *)

%Y Cf. A045857.

%Y Cf. A045784, A045785, A045787, A045788, A045789, A045791, A045792, A045793.

%K nonn,base

%O 1,1

%A _Jeff Burch_