Search: id:A063963
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%I A063963
%S A063963 3,11,14,17,21,26,27,30,32,33,38,53,62,65,74,87,91,107,111,129,131,137,
%T A063963 138,141,149,154,161,167,170,173,174,179,183,186,191,194,200,203,206,
%U A063963 210,217,219,221,227,230,238,243,246,247,251,255,257,263,266,267,278
%N A063963 Numbers n such that n and n+2540 have same number of divisors.
%H A063963 Harry J. Smith, <a href="b063963.txt">Table of n, a(n) for n=1,...,1000</
               a>
%H A063963 S. Graham, <a href="http://134.129.111.8/scripts/wa.exe?A2=ind0003&L=nmbrthry&P=R44">
               NMBRTHRY archives</a>
%o A063963 (PARI) j=[]; for(n=1,1000, if(numdiv(n)==numdiv(n+2540),j=concat(j,n))); 
               j
%o A063963 (PARI) { n=0; for (m=1, 10^9, if(numdiv(m)==numdiv(m + 2540), write("b063963.txt", 
               n++, " ", m); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               Sep 04 2009]
%Y A063963 Sequence in context: A083992 A105290 A158790 this_sequence A101585 A115214 
               A143029
%Y A063963 Adjacent sequences: A063960 A063961 A063962 this_sequence A063964 A063965 
               A063966
%K A063963 easy,nonn
%O A063963 1,1
%A A063963 Jason Earls (zevi_35711(AT)yahoo.com), Sep 04 2001

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