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 A059033 #3 Mar 30 2012 16:48:58 %S A059033 1,0,1,3,2,0,0,7,11,13,71,67,53,28,0,0,152,297,416,472,487,3965,3890, %T A059033 3586,2921,2022,1015,0,0,8159,16300,23929,30243,34774,36804,37306, %U A059033 398048,394008,377690,341125,289377,225082,152249,76140,0 %N A059033 Triangle in A059032 read by rows from left to right. %Y A059033 Cf. A059032, A059034, A059035, A059037. %K A059033 nonn,tabl %O A059033 0,4 %A A059033 _N. J. A. Sloane_, Feb 13 2001