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 A134847 #8 Jun 28 2019 06:01:44 %S A134847 1024,60025,200704,14040009,600005025,3906000004,62000004004, %T A134847 6000305000704,40880000700009,39000000020004,60000500050500025, %U A134847 249000000005004004,6000000050052001009,600201000902004000004,800000000087008020001,62000004003004008000004 %N A134847 Smallest square number with exactly n zero digits whose square root does not contain any zero digits. %C A134847 a(26) <= 20000000000000000000005837591200400708766761. %C A134847 For corresponding square roots and more information see A134846. %C A134847 a(26) <= 240002009020200000020200002000000001. - _Giovanni Resta_, Jun 28 2019 %H A134847 Giovanni Resta, <a href="/A134847/b134847.txt">Table of n, a(n) for n = 1..19</a> %e A134847 a(1) = 1024 because 1024 is the smallest square with one zero whose square root has no zero: 32. %Y A134847 Cf. A134843, A134844, A134845, A134846. %K A134847 nonn,base %O A134847 1,1 %A A134847 _Artur Jasinski_, Nov 13 2007 %E A134847 Edited and a(11)-a(13) added by _Klaus Brockhaus_, Nov 20 2007 %E A134847 a(14)-a(16) from _Giovanni Resta_, Jun 28 2019