Search: id:A118103
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%I A118103
%S A118103 1,1,2,4,6,9,12,15,18,22,26,30,34,38,42,47,52,57,62,67,72,77,82,87,93,
%T A118103 99,105,111,117,123,129,135,141,147,153,159,166,173,180,187,194,201,208,
%U A118103 215,222,229,236,243,250,257,264,272,280,288,296,304,312,320,328,336
%N A118103 First differences contain a(n) n's, in order, starting with a(0)=1.
%C A118103 a(261) = 2701 = a(260) + 15 is the first case where a(n) is relatively 
               prime to the difference (a(n)-a(n-1)) when that difference is composite; 
               a(263) = 2731 is the first prime in the sequence with a composite 
               difference.
%Y A118103 Cf. A001462, A100143, A108104.
%Y A118103 Sequence in context: A143118 A162800 A083652 this_sequence A157795 A003066 
               A075349
%Y A118103 Adjacent sequences: A118100 A118101 A118102 this_sequence A118104 A118105 
               A118106
%K A118103 nonn
%O A118103 0,3
%A A118103 Frank Adams-Watters (FrankTAW(AT)Netscape.net), Apr 12 2006

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