Number of binary relations R on [n] such that q(R) is a quasi-order and s(R) is a strict partial order (where q(R) and s(R) are defined below).

A369799

Number of binary relations R on [n] such that q(R) is a quasi-order and s(R) is a strict partial order (where q(R) and s(R) are defined below).

Terms

    a(0) =1a(1) =2a(2) =13a(3) =237a(4) =11590a(5) =1431913a(6) =424559959a(7) =292150780260

External references