OFFSET
0,6
EXAMPLE
a(7) = 3, cardinality reached by two sets. On the one hand, the multiplicities of the three partitions (6, 1), (5, 2), and (4, 3) are (1, 1). On the other hand, those of (5, 1, 1), (3, 3, 1) and (3, 2, 2) are (2, 1).
CROSSREFS
KEYWORD
nonn
AUTHOR
Álvar Ibeas, Sep 02 2020
STATUS
approved