1,1

Amiram Eldar, Table of n, a(n) for n = 1..10000

a(n) = A000203(A048747(n))/A000005(A048747(n)). - Amiram Eldar, Sep 06 2019

For a(3)=7, n=20 and sum of divisors of 20 is 42, number of divisors is 6, so integral quotient is 7 (42/6).

Cf. A000005, A000203, A048747.

Sequence in context: A081391 A296484 A073850 * A030781 A073417 A299493

Adjacent sequences: A048745 A048746 A048747 * A048749 A048750 A048751

easy,nonn

Enoch Haga

Offset corrected by Amiram Eldar, Sep 06 2019

approved