Search: id:A120763
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%I A120763
%S A120763 2,3,8,23,528,12143,147452448,1790515076063,21742224568633008,
%T A120763 264015832936910616143,3205944259352905611824448,
%U A120763 38929781141322332844384272063,472724332399077087729358215661008
%N A120763 a(1) = 2. a(n) = a(n-1)*(largest prime occurring earlier in the sequence) 
               - 1.
%H A120763 Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> 
               (listed in lieu of email address)
%e A120763 Among the first 4 terms of the sequence, 23 is the largest prime. So 
               a(5) = a(4)*23 -1 = 23*23 -1 = 528.
%o A120763 (PARI) {m=13;print1(a=2,",");v=[a];for(n=2,m,b=a;v=vecsort(v);j=#v;a=0;
               while(a<1,k=v[j];if(isprime(k),print1(a=b*k-1,",");v=concat(v,a),
               j--)))} - (Klaus Brockhaus, Aug 17 2006)
%Y A120763 Cf. A120762.
%Y A120763 Sequence in context: A006076 A086628 A032096 this_sequence A120708 A089847 
               A038561
%Y A120763 Adjacent sequences: A120760 A120761 A120762 this_sequence A120764 A120765 
               A120766
%K A120763 nonn
%O A120763 1,1
%A A120763 Leroy Quet Jul 03 2006
%E A120763 More terms from Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Aug 
               17 2006

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