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 A184411 #5 Mar 30 2012 18:57:13 %S A184411 1,2,4,6,7,9,10,13,14,17,18,19,22,23,24,28,29,30,34,35,36,37,41,42,43, %T A184411 45,49,50,51,53,56,58,59,60,62,65,67,68,70,72,75,77,78,80,82,84,86,88, %U A184411 89,91,93,95,97,99,101,103,105,107,109,111,113,115,117,118,120 %N A184411 Ranks of (even i)+j/r when all i+j/r are ranked; r=sqrt(2), i>=0, j>=0. Complement of A184410. %e A184411 Writing (i,j) for i+j/r, the first 7 in the ranking are (0,0), (0,1), (1,0), (0,2), (1,1), (2,0), (0,3); the ranks where i is odd are 3,5 and the ranks where i is even are 1,2,4,6,7. %Y A184411 Cf. A184397, A184410, A184412, A184413, A184414, A184415, A184416. %K A184411 nonn %O A184411 1,2 %A A184411 _Clark Kimberling_, Jan 13 2011