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Search: id:A141653
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%I A141653
%S A141653 4,9,4,8,18,21,22,4,25,15,16,35,12,10,42,45,24,18,55,57,20,33,36,38,39,
%T A141653 40,27,28,86,87,30,46,52,105,108,16,38,20,62,63,133,27,46,28,72,76,51,
               154,
%U A141653 52,158,20,162,55,21,172,58,177,60,93,187,189,98,198,40,203,102,104,70,
               112
%N A141653 Composites of the form n/(p(n)-p(n-1)), where p(n)=n-th prime.
%C A141653 Entries may be repeated and are shown in order of increasing generator 
               n.
%e A141653 n=8: 8/(p(8)-p(8-1))=8/(19-17)=4=a(1).
%e A141653 n=18: 18/(p(18)-p(18-1))=18/(761-59)=9=a(2).
%e A141653 n=24: 24/(p(24)-p(24-1))=24/(89-83)=4=a(3).
%e A141653 n=32: 32/(p(32)-p(32-1))=32/(131-127)=8=a(4).
%e A141653 n=36: 36/(p(36)-p(36-1))=36/(151-149)=18=a(5).
%Y A141653 Cf. A000040, A002808.
%Y A141653 Sequence in context: A086277 A068950 A021673 this_sequence A071793 A010714 
               A089090
%Y A141653 Adjacent sequences: A141650 A141651 A141652 this_sequence A141654 A141655 
               A141656
%K A141653 nonn
%O A141653 1,1
%A A141653 Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Sep 13 2008
%E A141653 Corrected and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Sep 26 2008

    
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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.


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