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 A035933 #13 Jul 06 2019 14:26:16 %S A035933 0,1,11,26,39,77,177,359,977,1977,3659,13659,28879,128879,289978, %T A035933 999663,4474997,14474997,39596964,139596964,389999999,1389999999, %U A035933 2899999999,12899999999,49999999986,149999999986,446874999996,1446874999996 %N A035933 Smallest number that takes n steps to reach 0 under "k->min product of 2 numbers whose concatenation is k". %C A035933 a(28) > 4.4*10^12. - _Jon E. Schoenfield_, Jan 05 2009 %Y A035933 Cf. A035930-A035935. %K A035933 nonn,base,nice %O A035933 0,3 %A A035933 _Erich Friedman_ %E A035933 More terms from _Naohiro Nomoto_, Apr 03 2001 %E A035933 a(18)-a(27) from _Jon E. Schoenfield_, Jan 05 2009