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 A258145 #6 Jun 11 2015 08:05:16 %S A258145 1,3,2,6,7,5,3,6,4,7,2,5,8,42,6,40,9,4,7,12,41,10,5,39,8,8,3,42,11,11, %T A258145 6,40,9,9,4,38,43,4,7,12,7,41,2,10,10,34,5,39,44,8,8,32,13,37,42,25,3, %U A258145 11,6,11,35 %N A258145 Row lengths of the irregular array in A256598. %C A258145 a(n) is the number of odd numbers in row A070165(2*n+1) and also in row A070168(2*n+1), for n >= 0 (if it turns out that a row 2*n+1 has infinite row length one puts a(n) = 0). %Y A258145 Cf. A256598, A070165, A070168. %K A258145 nonn,easy %O A258145 0,2 %A A258145 _Wolfdieter Lang_, May 27 2015