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 A096946 #5 Oct 12 2012 14:40:21 %S A096946 5,41,189,645,1815,4455,9867,20163,38610,70070,121550,202878,327522, %T A096946 513570,784890,1172490,1716099,2465991,3485075,4851275,6660225, %U A096946 9028305,12096045,16031925,21036600,27347580,35244396,45054284,57158420 %N A096946 Ninth column of (1,5)-Pascal triangle A096940. %C A096946 If Y is a 5-subset of an n-set X then, for n>=12, a(n-12) is the number of 8-subsets of X having at most one element in common with Y. > - _Milan Janjic_, Dec 08 2007 %F A096946 a(n)= (n+40)*binomial(n+7, 7)/8 = 5*b(n)-4*b(n-1), with b(n):=A000581(n+8)=binomial(n+8, 8). %F A096946 G.f.: (5-4*x)/(1-x)^9. %Y A096946 Eighth column: A096945; tenth column: A096947. %K A096946 nonn,easy %O A096946 0,1 %A A096946 _Wolfdieter Lang_, Jul 16 2004