cp's OEIS Frontend

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.

A095171 Number of multiples of n in the n-th row of the triangle A095167.

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%I A095171 #6 Dec 05 2013 19:56:51
%S A095171 1,2,3,2,5,2,7,3,3,2,11,1,13,2,2,2,17,2,19,2,2,2,23,1,4,2,2,1,29,2,31,
%T A095171 2,3,2,3,2,37,3,3,2,41,1,43,2,3,1,47,2,8,2,2,1,53,1,4,2,3,3,59,2,61,2,
%U A095171 3,3,3,1,67,2,2,2,71,1,73,3,2,1,3,1,79,1,3,2,83,1,4,2,1,3,89,1,5,1,3,2,3,2
%N A095171 Number of multiples of n in the n-th row of the triangle A095167.
%C A095171 a(p) = p if p is a prime. a(4) = 2 as among 8, 10,12,14, there are two multiples of 4.
%o A095171 (PARI) S=Set();for(n=2,100,k=0;m=1;s=0;while(k<n,m++;if(!setsearch(S,m)&&gcd(m,n)>1,S=setunion(S,[m]);k++;if(m%n==0,s++)));print1(" ",s)) (Alekseyev)
%Y A095171 Cf. A095167, A095168, A095169, A095170.
%K A095171 nonn
%O A095171 1,2
%A A095171 _Amarnath Murthy_, Jun 01 2004
%E A095171 More terms from _Max Alekseyev_, Jun 30 2005