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 A232771 #10 Dec 30 2014 13:13:03 %S A232771 0,1,3,6,17,43,84,237,599,1170,3301,8343,16296,45977,116203,226974, %T A232771 640377,1618499,3161340,8919301,22542783,44031786,124229837,313980463, %U A232771 613283664,1730298417,4373183699,8541939510,24099948001 %N A232771 Values of x satisfying x^2 = floor(y^2/3 + y). %C A232771 Corresponding values of y are given by A232765. %C A232771 a(n) are also the values of x satisfying x^2 = floor(y^2/3 - y). %C A232771 Let b(n) equal the second differences of a(n), where b(1) = 1, then b(3n-2) = b(3n-1) = A028230(n) and b(3n) = A067900(n) for n>0. %F A232771 Empirical g.f.: x^2*(x^4+3*x^3+6*x^2+3*x+1) / (x^6-14*x^3+1). - _Colin Barker_, Dec 30 2014 %Y A232771 Cf. A232765, A028230, A067900. %K A232771 nonn %O A232771 1,3 %A A232771 _Richard R. Forberg_, Nov 30 2013