Search: id:A064555
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%I A064555
%S A064555 1,2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,
%T A064555 97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,
%U A064555 181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,
               281,283,293,307,311,319,317
%N A064555 a(n) = Max { k | A064553 (k) = n}.
%C A064555 A064553(a(n)) = n and A064553(a(k)) <> k for k > a(n). a(n) = A000040(n) 
               for 1 < n < 66, but A000040(66) = 313 <> 319 = 11*29 = a(66). A064553(A000040(n)) 
               = n + 1 for all n.
%C A064555 In the plot, the lowest line corresonds to the cases when a(n)=prime(n-1). 
               - T. D. Noe (noe(AT)sspectra.com), Dec 12 2004
%H A064555 T. D. Noe, <a href="b064555.txt">Table of n, a(n) for n = 1..8000</a>
%H A064555 T. D. Noe, <a href="http://www.sspectra.com/math/A064555.gif">Plot of 
               A064555</a>
%Y A064555 Cf. A064554, A001055, A064553, A000040.
%Y A064555 Sequence in context: A008578 A100726 A015919 this_sequence A095320 A077359 
               A057448
%Y A064555 Adjacent sequences: A064552 A064553 A064554 this_sequence A064556 A064557 
               A064558
%K A064555 nonn
%O A064555 1,2
%A A064555 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 21 2001

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