Search: id:A108542
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%I A108542
%S A108542 3,5,11,17,31,37,47,59,67,109,127,157,163,167,173,211,241,263,271,293,
%T A108542 313,367,389,439,449,457,503,571,593,613,619,643,661,677,701,727,739,
%U A108542 787,823,911,983,991,1021,1069,1163,1187,1231,1289,1381,1429,1487,1523
%N A108542 Greater prime factor of n-th golden semiprime.
%C A108542 a(n) = A108540(n)/A108541(n);
%C A108542 abs(phi-a(n)/A108541(n)) < 1, where phi = golden ratio = (1+sqrt(5))/
               2;
%C A108542 subsequence of A108539.
%Y A108542 Cf. A084127, A108543, A108544, A108539.
%Y A108542 Sequence in context: A108402 A090795 A087732 this_sequence A006450 A085918 
               A146622
%Y A108542 Adjacent sequences: A108539 A108540 A108541 this_sequence A108543 A108544 
               A108545
%K A108542 nonn
%O A108542 1,1
%A A108542 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 09 2005

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