Square array read by descending antidiagonals. T(n,k) is the number of acyclic k-multidigraphs on n labeled vertices, n>=0,k>=0.

A339768

Square array read by descending antidiagonals. T(n,k) is the number of acyclic k-multidigraphs on n labeled vertices, n>=0,k>=0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =3a(9) =1a(10) =1a(11) =1a(12) =5a(13) =25a(14) =1a(15) =1a(16) =1a(17) =7a(18) =109a(19) =543a(20) =1a(21) =1a(22) =1a(23) =9a(24) =289a(25) =9449a(26) =29281a(27) =1a(28) =1a(29) =1

External references