1,1

Table of n, a(n) for n=1..22.

See A064771 for an example when the number is even.

Odd terms in A064771 (a unique subset of proper divisors sums to the number).

Cf. A136446.

Sequence in context: A185321 A267462 A256237 * A087167 A290811 A259631

Adjacent sequences: A065232 A065233 A065234 * A065236 A065237 A065238

nonn

Jud McCranie, Oct 23 2001

Definition clarified by M. F. Hasler, Apr 08 2008

approved