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 A261065 #9 Aug 08 2015 10:53:47 %S A261065 1,8,75,840,11025,166320,2837835,54054000,1137161025,26189163000, %T A261065 655383804075,17709112020600,513880482740625,15938200818540000, %U A261065 526174085058496875,18422283260401020000,681816379418800250625,26597171457203972625000,1090705672840839577396875 %N A261065 Second column of A086872. %F A261065 (n-1)*(n+1)*a(n) -n*(n+2)*(2*n-1)*a(n-1)=0. %F A261065 G.f. x*3F1(3/2,4,2; 3; 2x). %F A261065 a(n) = A001879(n-1)+2*A001880(n+2). %Y A261065 Cf. A086872. %K A261065 nonn,easy %O A261065 1,2 %A A261065 _R. J. Mathar_, Aug 08 2015