OFFSET
0,4
COMMENTS
Also omega of the product of products of parts over all strict integer partitions of n.
The omega of n is A001222(n), the number of prime factors of n counted with multiplicity.
MATHEMATICA
Table[Sum[Total[PrimeOmega/@s], {s, Select[IntegerPartitions[n], UnsameQ@@#&]}], {n, 0, 30}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Gus Wiseman, May 07 2019
STATUS
approved