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 A318631 #6 Aug 30 2018 23:30:26 %S A318631 0,1,92252,10015005,211911256,2054455670,12565647510,56672074888, %T A318631 205811431514,635627275767,1731030733840,4263421511271,9672347764772, %U A318631 20492404684400,40975640875026,77970286548270,142128053955030,249524848105533,423793107835284,698878653009537 %N A318631 Number of 10-member subsets of [10*n] whose elements sum to a multiple of n. %H A318631 Alois P. Heinz, <a href="/A318631/b318631.txt">Table of n, a(n) for n = 0..10000</a> %H A318631 <a href="/index/Rec#order_27">Index entries for linear recurrences with constant coefficients</a>, signature (4,-2,-12,17,9,-32,10,29,-29,-9,28,-7,-5,-5,-7,28,-9,-29,29,10,-32,9,17,-12,-2,4,-1). %F A318631 G.f.: x*(10*x^26 +92338*x^25 +9646514*x^24 +172035984*x^23 +1227946110*x^22 +4890258085*x^21 +12890246964*x^20 +25218221137*x^19 +40000080160*x^18 +54781619237*x^17 +67109913895*x^16 +75109489209*x^15 +78762565667*x^14 +79655768180*x^13 +78762567575*x^12 +75109489423*x^11 +67109913979*x^10 +54781618619*x^9 +40000079524*x^8 +25218220679*x^7 +12890245939*x^6 +4890259109*x^5 +1227947663*x^4 +172035752*x^3 +9645999*x^2 +92248*x+1) / ((x^4-x^3+x^2-x+1) *(x^4+x^3+x^2+x+1)^2 *(x+1)^5 *(x-1)^10). %Y A318631 Row n=10 of A318557. %K A318631 nonn,easy %O A318631 0,3 %A A318631 _Alois P. Heinz_, Aug 30 2018