Triangular array read by rows: T(n,k) is the number of binary relations on [n] that are dense (A355730) and have exactly k strongly connected components, n>=0, 0<=k<=n.

A365985

Triangular array read by rows: T(n,k) is the number of binary relations on [n] that are dense (A355730) and have exactly k strongly connected components, n>=0, 0<=k<=n.

Terms

    a(0) =1a(1) =0a(2) =2a(3) =0a(4) =3a(5) =10a(6) =0a(7) =85a(8) =114a(9) =134a(10) =0a(11) =13317a(12) =10029a(13) =6972a(14) =4606a(15) =0a(16) =8300125a(17) =4026580a(18) =1756610a(19) =866300a(20) =389882a(21) =0a(22) =19743155103a(23) =6020248905a(24) =1736497215a(25) =589363590a(26) =231745290a(27) =78631330

External references