3,1

Table of n, a(n) for n=3..70.

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)

Sequence in context: A081391 A296484 A073850 * A030781 A073417 A299493

Adjacent sequences: A048745 A048746 A048747 * A048749 A048750 A048751

easy,nonn

Enoch Haga

approved