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 A035076 #11 Oct 08 2019 16:29:20 %S A035076 30,95,300,949,3000,9487,30000,94869,300000,948684,3000000,9486833, %T A035076 30000000,94868330,300000000,948683299,3000000000,9486832981, %U A035076 30000000000,94868329806,300000000000,948683298051,3000000000000 %N A035076 a(n) is root of square starting with digit 9: first term of runs. %F A035076 a(n) = ceiling(sqrt(9*10^n)), n > 1. %t A035076 Ceiling[Sqrt[9*10^Range[2,30]]] (* _Harvey P. Dale_, Aug 07 2013 *) %Y A035076 Cf. A067479 (squares), A017936. %Y A035076 Cf. 2: A035069, 3: A035070, 4: A035071, 5: A035072, 6: A035073, 7: A035074, 8: A035075. %K A035076 nonn,base %O A035076 2,1 %A A035076 _Patrick De Geest_, Nov 15 1998