Hy!
Oh, right, I see that now: "This sequence contains infinitely many odd
elements". So I should look for such numbers:
- odd
- abundant (sum of all its proper divisors is bigger than 2*n)
- sum of any subset of their divisors (divisors D - {1,n}) never equals n
(A136446)
?
Thank you for your clarification,
Matevž Markovič