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A076341(A001358(n)), imaginary part of semiprimes mapped as defined in A076340, A076341.
3

%I #5 Mar 30 2012 18:50:26

%S 0,-2,-8,2,-2,0,-12,-2,8,2,-16,2,4,-2,-8,-2,-16,-12,8,-24,2,-2,16,-28,

%T 2,-20,2,20,-2,-24,-4,-36,-2,16,2,-32,20,-2,-8,-24,2,-36,-48,-28,-2,

%U -52,-2,0,32,2,28,-2,-48,-32,-2,24,-64,2,-56,40,-4,2,-72,2,-20,44,-2,-32,-76,-2

%N A076341(A001358(n)), imaginary part of semiprimes mapped as defined in A076340, A076341.

%e Applying the map as defined in A076340, A076341:

%e A001358(15)=39=3*13=(4-1)*(12+1) -> (4,-1)*(12,1) = (4*12+1,4-12) = (49,-8), therefore a(15)=-8 and A076343(15)=49.

%Y Real part = A076343, A070750, A076348.

%K sign

%O 1,2

%A _Reinhard Zumkeller_, Oct 08 2002

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Last modified September 22 22:30 EDT 2024. Contains 376140 sequences. (Running on oeis4.)