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 A052255 #16 Jun 13 2015 00:50:04 %S A052255 1,13,81,345,1155,3267,8151,18447,38610,75790,140998,250614,428298, %T A052255 707370,1133730,1769394,2696727,4023459,5888575,8469175,11988405, %U A052255 16724565,23021505,31300425 %N A052255 Partial sums of A050484. %D A052255 A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pp. 194-196. %D A052255 Murray R.Spiegel, Calculus of Finite Differences and Difference Equations, "Schaum's Outline Series", McGraw-Hill, 1971, pp. 10-20, 79-94. %H A052255 <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (9,-36,84,-126,126,-84,36,-9,1). %F A052255 a(n) = (5n+8)*C(n+7, 7)/8. %F A052255 G.f.: (1+4*x)/(1-x)^9. %Y A052255 Cf. A050484. %Y A052255 Cf. A093562 ((5, 1) Pascal, column m=8). %K A052255 easy,nonn %O A052255 0,2 %A A052255 _Barry E. Williams_, Feb 02 2000