Search: id:A091067
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%I A091067
%S A091067 3,6,7,11,12,14,15,19,22,23,24,27,28,30,31,35,38,39,43,44,46,47,48,51,
%T A091067 54,55,56,59,60,62,63,67,70,71,75,76,78,79,83,86,87,88,91,92,94,95,96,
%U A091067 99,102,103,107,108,110,111,112,115,118,119,120,123,124,126,127,131
%N A091067 Numbers a(n) such that odd part of a(n) is of form 4k+3.
%C A091067 Either of form 2a(m) or 4k+3, k>=0, 0<m<n.
%C A091067 A000265(a(n)) is an element of A004767.
%C A091067 a(n) such that A038189(a(n)) = 1.
%C A091067 Conjecture: a(n) = A060833(n+1) - 1.
%C A091067 Numbers n such that kronecker(-n,m)=kronecker(m,n) for all m. - Michael 
               Somos Sep 22 2005
%o A091067 (PARI) for(n=1,200,if(((n/2^valuation(n,2)-1)/2)%2,print1(n",")))
%o A091067 (PARI) {a(n)= local(m,c); if(n<1, 0, c=0; m=1; while( c<n, m++; if( ((m/
               2^valuation(m,2)-1)/2)%2, c++)); m)} /* Michael Somos Sep 22 2005 
               */
%Y A091067 Complement of A091072.
%Y A091067 Sequence in context: A101184 A087643 A022544 this_sequence A120511 A022550 
               A153033
%Y A091067 Adjacent sequences: A091064 A091065 A091066 this_sequence A091068 A091069 
               A091070
%K A091067 nonn,easy
%O A091067 1,1
%A A091067 Ralf Stephan (ralf(AT)ark.in-berlin.de), Feb 22 2004

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