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 A244872 #17 Nov 01 2021 11:47:58
%S A244872 1,15,114,569,2138,6562,17329,40765,87512,174452,327137,582784,993895,
%T A244872 1632561,2595510,4009958,6040323,8895861,12839284,18196419,25366968,
%U A244872 34836428,47189231,63123163,83465122,109188274,141430667,181515362,230972141,291560851,365296444
%N A244872 Number of magic labelings with magic sum n of 4th graph shown in link.
%H A244872 N. J. A. Sloane, <a href="/A244869/a244869.jpg">Graphs for A244869-A244876.</a>
%H A244872 R. P. Stanley, <a href="/A002721/a002721.pdf">Examples of Magic Labelings</a>, Unpublished Notes, 1973 [Cached copy, with permission]
%H A244872 <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (7, -20, 28, -14, -14, 28, -20, 7, -1).
%F A244872 G.f.: (1+8*x+29*x^2+43*x^3+29*x^4+8*x^5+x^6)/((1-x)^8*(1+x)).
%F A244872 a(n) = 17*n^7/1440 + 119*n^6/960 + 28*n^5/45 + 721*n^4/384 + 5243*n^3/1440 + 721*n^2/160 + 129*n/40 + (-1)^n/256 + 255/256. [_Bruno Berselli_, Jul 08 2014]
%t A244872 Table[17 n^7/1440 + 119 n^6/960 + 28 n^5/45 + 721 n^4/384 + 5243 n^3/1440 + 721 n^2/160 + 129 n/40 + (-1)^n/256 + 255/256, {n, 0, 30}]
%t A244872 LinearRecurrence[{7,-20,28,-14,-14,28,-20,7,-1},{1,15,114,569,2138,6562,17329,40765,87512},40] (* _Harvey P. Dale_, Nov 01 2021 *)
%Y A244872 Cf. A244869-A244876.
%K A244872 nonn,easy
%O A244872 0,2
%A A244872 _N. J. A. Sloane_, Jul 08 2014