1,1
Very few duplicates occur: for the amicable numbers less than 10^14, a number appears at most twice.
T. D. Noe, Table of n, a(n) for n=1..10000
a(n) = A002046(n) / gcd(A002025(n),A002046(n)) = A002046(n) / A061469(n).
Cf. A180326 (non-common part of the smaller number of an amicable pair)
Sequence in context: A209953 A251390 A251383 * A201039 A142674 A089706
Adjacent sequences: A180324 A180325 A180326 * A180328 A180329 A180330
nonn
T. D. Noe, Sep 07 2010
approved