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 A244871 #13 Jan 11 2017 18:24:58
%S A244871 1,10,55,217,672,1755,4030,8386,16135,29140,49941,81915,129430,198037,
%T A244871 294652,427780,607725,846846,1159795,1563805,2078956,2728495,3539130,
%U A244871 4541382,5769907,7263880,9067345,11229631,13805730,16856745,20450296,24661000,29570905
%N A244871 Number of magic labelings with magic sum n of 3rd graph shown in link.
%H A244871 N. J. A. Sloane, <a href="/A244869/a244869.jpg">Graphs for A244869-A244876.</a>
%H A244871 R. P. Stanley, <a href="/A002721/a002721.pdf">Examples of Magic Labelings</a>, Unpublished Notes, 1973 [Cached copy, with permission]
%H A244871 <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (5, -8, 0, 14, -14, 0, 8, -5, 1).
%F A244871 G.f.: (1+5*x+13*x^2+22*x^3+13*x^4+5*x^5+x^6)/((1-x)^7*(1+x)^2).
%F A244871 a(n) = n^6/48 + 3*n^5/16 + 77*n^4/96 + 2*n^3 + 37*n^2/12 - n*(-1)^n/32 + 89*n/32 - 3*(-1)^n/64 + 67/64. [_Bruno Berselli_, Jul 08 2014]
%t A244871 Table[n^6/48 + 3 n^5/16 + 77 n^4/96 + 2 n^3 + 37 n^2/12 - n (-1)^n/32 + 89 n/32 - 3 (-1)^n/64 + 67/64, {n,0,40}] (* _Bruno Berselli_, Jul 08 2014 *)
%Y A244871 Cf. A244869-A244876.
%K A244871 nonn,easy
%O A244871 0,2
%A A244871 _N. J. A. Sloane_, Jul 08 2014