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 A066548 #2 Dec 05 2013 19:55:05 %S A066548 1,5,15,25,5,15,25,20,33,33,43,46,64,63,73,90,101,117,127,27,41,55,59, %T A066548 61,72,89,99,109,126,137,131,70,85,100,121,141,152,170,197,135,108, %U A066548 145,164,189,219,240,160,167,184,227,259,282,203,207,248,275,317,297,228 %N A066548 Sum of digits of n-th term of A066547. %Y A066548 Cf. A066547. %K A066548 nonn,base %O A066548 1,2 %A A066548 _Amarnath Murthy_, Dec 16 2001 %E A066548 More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 01 2003