%I A116462
%S A116462 28087,56174,93623,112348,149815,150967,159159,187246,224695,224696,
%T A116462 299630,299959,301943,318318,318319,337043,374492,449390,449392,468119,
%U A116462 486839,599191,599260,599479,599918,601527,603886,617911,636636,636638
%N A116462 Numbers n such that the minimal length of the corresponding shortest 
               addition chain A003313(n)=A003313(7*n).
%Y A116462 Cf. A115016, A003313 [l(k)], A086878 [l(k)=l(2*k)], A116459 [l(k)=l(3*k], 
               A116460 [l(k)=l(5*k)], A116461 [l(k)=l(6*k)], A116463 [l(k)=l(9*k], 
               A117151 [l(k)=l(10*k)].
%Y A116462 Sequence in context: A096027 A058419 A046333 this_sequence A134123 A049052 
               A083611
%Y A116462 Adjacent sequences: A116459 A116460 A116461 this_sequence A116463 A116464 
               A116465
%K A116462 nonn
%O A116462 1,1
%A A116462 Hugo Pfoertner (hugo(AT)pfoertner.org), Mar 07 2006