OFFSET
0,3
COMMENTS
A multiset is normal if it spans an initial interval of positive integers.
A multiset partition is intersecting iff no two parts are disjoint.
EXAMPLE
The a(1) = 1 through a(3) = 8 multiset partitions:
1: {{1}}
2: {{1,1}}
{{1,2}}
{{1},{1}}
3: {{1,1,1}}
{{1,2,2}}
{{1,1,2}}
{{1,2,3}}
{{1},{1,1}}
{{2},{1,2}}
{{1},{1,2}}
{{1},{1},{1}}
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Gus Wiseman, Sep 27 2018
STATUS
approved