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 A022302 #4 Mar 30 2012 18:55:50 %S A022302 1,2,7,10,21,66,213,246,273,454,673,700,727,934,2451,2766,2799,3006, %T A022302 3099,3396,234665,234758,234977,235004,235013,434216,436951,436978, %U A022302 437005,437128,437155,437708,437735,437762,438017,438044,438145,438314,438341 %N A022302 Least k such that first k terms of A022300 contain n more 1's than 2's. %K A022302 nonn %O A022302 0,2 %A A022302 _Clark Kimberling_