1,1

A000005(a(n))=A001358(n) and A000005(m)<>A001358(n) for m<a(n);

a(n) = A005179(A001358(n));

a(p*q) = 2^(q-1) * 3^(p-1) for primes p<=q;

a(A000040(i)*A000040(j)) = 2^(A084127(j)-1) * 3^(A084127(i)-1) for i<=j;

Cf. A061234, A061286, A061299.

Sequence in context: A167338 A078402 A127845 this_sequence A064476 A038266 A117596

Adjacent sequences: A096929 A096930 A096931 this_sequence A096933 A096934 A096935

nonn

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 15 2004