%I A003962
%S A003962 1,2,3,4,4,6,6,8,9,8,7,12,9,12,12,16,10,18,12,16,18,14,15,24,16,18,27,
24,
%T A003962 16,24,19,32,21,20,24,36,21,24,27,32,22,36,24,28,36,30,27,48,36,32,30,
36,
%U A003962 30,54,28,48,36,32,31,48,34,38,54,64,36,42,36,40,45,48,37,72,40,42,48,
48
%N A003962 Fully multiplicative with a(p(k)) = [ (p(k+1)+1)/2 ] for k-th prime p(k).
%F A003962 Multiplicative with a(p^e) = ((A000040(A000720(p)+1)+1)/2)^e. - David
W. Wilson (davidwwilson(AT)comcast.net), Aug 01, 2001.
%Y A003962 Sequence in context: A092988 A138768 A111939 this_sequence A102443 A102441
A102440
%Y A003962 Adjacent sequences: A003959 A003960 A003961 this_sequence A003963 A003964
A003965
%K A003962 nonn,mult
%O A003962 1,2
%A A003962 Marc LeBrun (mlb(AT)well.com)
%E A003962 Corrected and extended by David W. Wilson (davidwwilson(AT)comcast.net).
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