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%I #2 Jan 26 2014 15:37:09
%S 1,3,2,8,13,18,27,29,23,56,7,74,44,98,67,49,171,200,217,28,137,309,17,
%T 116,209,448,471,174,571,629,137,739,111,793,853,318,997,1002,560,164,
%U 610,446,1419,1466,385,1615,1573,1633,1707,1825,946,662,2221,781,1198
%N Denominators of A007504 divided by A033955, starting from the second term of A033955.
%C Conjecture: with the exception of the second term, 2 <= A165659(n)/a(n) < 3.
%o (PARI) a1(n)=sum(i=1, n, prime(i)); b1(n)=sum(i=1, n, prime(n+1)%prime(i)); a(n)=if(n<0, 0, denominator(a1(n)/b1(n))); for(n=1, 50, print1(a(n) ", "))
%Y Cf. A007504, A033995, A002110, A102647, A165657, A165658, A165659
%K easy,nonn
%O 1,2
%A _Creighton Dement_, Sep 24 2009
%E Terms corrected by _Creighton Dement_, Oct 03 2009
%E Removed a conjecture - R. J. Mathar, Oct 09 2009
%E Typo in definition corrected by _Creighton Dement_, Oct 09 2009
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