This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A029773 #14 Aug 29 2023 04:23:43 %S A029773 0,1,25,36,100,121,625,729,2500,3025,3600,3969,4096,4356,5476,5776, %T A029773 9025,9216,9801,10000,10201,11025,12100,12321,12544,13225,13456,15625, %U A029773 19321,20164,39601,42025,44521,49284,50625,53824,62500,65025 %N A029773 Squares k^2 in which the digits of k appear. %H A029773 Harvey P. Dale, <a href="/A029773/b029773.txt">Table of n, a(n) for n = 1..1000</a> %F A029773 a(n) = A029772(n)^2. - _Michel Marcus_, Aug 29 2023 %t A029773 Select[Range[0,300]^2,SubsetQ[IntegerDigits[#],IntegerDigits[Sqrt[#]]]&] (* _Harvey P. Dale_, Jan 18 2015 *) %Y A029773 Cf. A029772. %K A029773 nonn,base %O A029773 1,3 %A A029773 _Patrick De Geest_