Search: id:A063071
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%I A063071
%S A063071 14,206,1334,1634,2685,14841,18873,19358,26872,33998,36566,42818,56564,
%T A063071 84134,116937,122073,161001,162602,166934,174717,190773,193893,239499,
%U A063071 245768,260096,289454,326884,383594,409695,422073,430137,438993,440013
%N A063071 Sigma(n)*Omega(n) = sigma(n+1)*Omega(n+1), where Omega(n) is the number 
               of distinct prime divisors of n (A001221).
%H A063071 Harry J. Smith, <a href="b063071.txt">Table of n, a(n) for n=1,...,100</
               a>
%o A063071 (PARI) for(n=1,10^6, if(sigma(n)*omega(n)==sigma(n+1)*omega(n+1),print(n)))
%o A063071 (PARI) { n=0; s=1; for (m=1, 10^9, if(s!=(r=sigma(m)*omega(m)), s=r, 
               write("b063071.txt", n++, " ", m - 1); if (n==100, break)) ) } [From 
               Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 16 2009]
%Y A063071 Cf. A001221, A002961, A000203.
%Y A063071 Sequence in context: A113349 A109764 A002961 this_sequence A160682 A097261 
               A158555
%Y A063071 Adjacent sequences: A063068 A063069 A063070 this_sequence A063072 A063073 
               A063074
%K A063071 easy,nonn
%O A063071 1,1
%A A063071 Jason Earls (zevi_35711(AT)yahoo.com), Aug 04 2001

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