OFFSET
0,3
LINKS
Fausto A. C. Cariboni, Table of n, a(n) for n = 0..150
EXAMPLE
The five partitions of 15 not satisfying the condition are:
(8,4,2,1)
(6,4,3,2)
(6,3,3,2,1)
(6,3,2,2,1,1)
(6,3,2,1,1,1,1)
MATHEMATICA
Table[Length[Select[IntegerPartitions[n], UnsameQ@@Times@@@Subsets[Union[#], {2}]&]], {n, 0, 30}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Gus Wiseman, May 31 2019
STATUS
approved