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 A073048 #9 Aug 14 2013 03:33:29 %S A073048 5,10,1,191,13,1134,157,1169312,100149391,1016258233,107375450119, %T A073048 10271593487494 %N A073048 Starting term of the first length-n chain of equidigital numbers (A046758). %D A073048 Journal of Recreational Mathematics, 29(2) 138 1998, Solution to Problem 2209 "Equidigital Representation" %e A073048 13 is in the sequence because prime decompositions of 13 through 17, i.e. 13, 14=2*7, 15=3*5, 16=2^4, 17, use as many digits as their normal decimal representation. %Y A073048 Cf. A046758. %K A073048 hard,more,base,nonn %O A073048 1,1 %A A073048 _Lekraj Beedassy_, Aug 31 2002 %E A073048 a(9) corrected and a(11) from _Donovan Johnson_, Jul 30 2010 %E A073048 a(12) from _Giovanni Resta_, Aug 14 2013