Search: id:A086247
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%I A086247
%S A086247 1,1,1,1,1,1,1,1,1,2,2,1,1,2,2,1,3,1,2,1,2,2,3,1,4,2,3,3,1,1,4,2,4,3,1,
%T A086247 6,2,3,5,1,3,6,6,2,2,5,3,4,8,5,1,2,7,5,4,3,3,10,2,6,7,5,9,3,4,4,10,6,8,
%U A086247 1,15,3,2,5,2,4,14,10,8,6,6,15,5,4,12,7,7,10,15,3,6,8,8,5,15,12
%N A086247 Differences of successive 7-smooth numbers.
%C A086247 a(n) = A002473(n+1) - A002473(n);
%C A086247 A002473(n) is a term of A085153 iff a(n)=1.
%H A086247 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               SmoothNumber.html">Smooth Number</a>
%Y A086247 Cf. A061987.
%Y A086247 Sequence in context: A055230 A112050 A078401 this_sequence A116452 A103958 
               A122923
%Y A086247 Adjacent sequences: A086244 A086245 A086246 this_sequence A086248 A086249 
               A086250
%K A086247 nonn
%O A086247 1,10
%A A086247 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 13 2003

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