A342466 -id:A342466 - cp's OEIS frontend

A342465 a(n) = A329697(A337194(n)).

0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 0, 1, 0, 0, 0, 2, 1, 0, 0, 1, 0, 0, 0, 2, 0, 3, 1, 0, 0, 3, 2, 0, 1, 2, 1, 1, 0, 0, 3, 4, 1, 2, 2, 0, 1, 0, 1, 3, 0, 2, 0, 0, 2, 0, 2, 1, 2, 0, 0, 1, 1, 4, 3, 3, 0, 2, 0, 2, 1, 4, 3, 0, 2, 0, 2, 1, 0, 3, 3, 4, 0, 2, 0, 1, 0, 0, 2, 4, 1, 4, 2, 2, 2, 3, 0

Offset: 1

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Antti Karttunen, Mar 16 2021

nonn

Index entries for sequences related to sigma(n)

Cf. A000203, A000265, A329697, A337194, A342466.

Cf. also A336694, A336928.

A000265(n) = (n>>valuation(n,2));
A329697(n) = if(!bitand(n,n-1),0,1+A329697(n-(n/vecmax(factor(n)[, 1]))));
A337194(n) = (1+A000265(sigma(n)));
A342465(n) = A329697(A336698(n));

a(n) = A329697(A336698(n)) = A329697(A337194(n)).

cp's OEIS Frontend

A342465 a(n) = A329697(A337194(n)).

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