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 A053059 #11 Jul 02 2025 16:01:59
%S A053059 1,4,9,49,144,289,441,1444,7744,11236,11449,11664,11881,13689,14884,
%T A053059 16384,16641,19881,21316,26896,28224,29241,29929,31684,36481,38416,
%U A053059 41616,42436,42849,43264,43681,44944,48841,49284,55696,69169,76176
%N A053059 Squares whose product of digits is also a nonzero square.
%D A053059 Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000
%H A053059 Harvey P. Dale, <a href="/A053059/b053059.txt">Table of n, a(n) for n = 1..1000</a>
%t A053059 nzsQ[n_]:=Module[{pd=Times@@IntegerDigits[n]},pd!=0&&IntegerQ[Sqrt[pd]]]; Select[Range[2000]^2,nzsQ] (* _Harvey P. Dale_, Nov 13 2012 *)
%Y A053059 A061867 allows zeros. Cf. A000290.
%K A053059 easy,base,nonn
%O A053059 1,2
%A A053059 _Felice Russo_, Feb 25 2000
%E A053059 More terms from _James Sellers_, Feb 28 2000