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 A054624 #17 Sep 15 2015 12:05:08 %S A054624 0,1,108,5934,104968,976887,6047412,28249228,107377488,348684381, %T A054624 1000010044,2593758618,6191761368,13785886387,28925519364,57665115096, %U A054624 109951267744,201599532153,357046911756,613106873542,1024000320168,1667988506415,2655992794708 %N A054624 Number of ways to color vertices of a 10-gon using <= n colors, allowing only rotations. %H A054624 T. D. Noe, <a href="/A054624/b054624.txt">Table of n, a(n) for n = 0..1000</a> %H A054624 <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (11,-55,165,-330,462,-462,330,-165,55,-11,1). %F A054624 Sum_{d|10} phi(d)*n^(10/d)/10 = n*(n+1)*(n^8-n^7+n^6-n^5+n^4+4)/10. %F A054624 G.f.: x*(100*x^8 +4783*x^7 +45547*x^6 +130963*x^5 +131119*x^4 +45469*x^3 +4801*x^2 +97*x+1) / (1-x)^11. - _Colin Barker_, Jun 12 2012 %Y A054624 Row 10 of A075195. %K A054624 nonn,easy %O A054624 0,3 %A A054624 _N. J. A. Sloane_, Apr 16 2000 %E A054624 Edited by _Christian G. Bower_, Sep 07 2002