OFFSET
1,6
COMMENTS
a(n) is always even since each incomparable pair (p1,p2) has a distinct companion (p2,p1).
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..200 (first 55 terms from Wouter Meeussen)
Wikipedia, Dominance Order
MATHEMATICA
Table[Count[ Flatten[Outer[dominant , Partitions[n], Partitions[n], 1]], 0], {n, 24}] (* see A248475 for definition of 'dominant' *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Wouter Meeussen, Oct 07 2014
STATUS
approved