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 A216398 #6 Sep 07 2012 05:05:28 %S A216398 22786974071,73737982962,372647999625,741999999540,100000000000, %T A216398 2434703999430,1876917059570,15312327487352,360000000000 %N A216398 For digit n from 1 to 9, a(n) = the sum of all numbers m such that m is equal to the number of n's in the decimal digits of all numbers <= m. %C A216398 Closely related to A130432. - _N. J. A. Sloane_, Sep 07 2012 %Y A216398 Cf. A014778, A101639, A101640, A101641, A130427, A130428, A130429, A130430, A130431, A130432. %K A216398 nonn,base,fini,full %O A216398 1,1 %A A216398 _V. Raman_, Sep 06 2012