OFFSET
1,4
COMMENTS
The Heinz number of an integer partition (y_1, ..., y_k) is prime(y_1) * ... * prime(y_k).
LINKS
EXAMPLE
The sum of coefficients of s(32) = f(221) + 2f(2111) + 5f(11111) is a(15) = 8.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Gus Wiseman, Nov 20 2018
STATUS
approved