References to A005835

Pseudoperfect (or semiperfect) numbers n: some subset of the proper divisors of n sums to n.
6, 12, 18, 20, 24, 28, 30, 36, 40, 42, 48, 54, 56, 60, 66, 72, 78, 80, 84, 88, 90, 96, 100

1 seqfan posts