Array read by antidiagonals: T(m,n) is the number of (undirected) cycles in the complete bipartite graph K_{m,n}.

A360849

Array read by antidiagonals: T(m,n) is the number of (undirected) cycles in the complete bipartite graph K_{m,n}.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =3a(8) =3a(9) =0a(10) =0a(11) =6a(12) =15a(13) =6a(14) =0a(15) =0a(16) =10a(17) =42a(18) =42a(19) =10a(20) =0a(21) =0a(22) =15a(23) =90a(24) =204a(25) =90a(26) =15a(27) =0a(28) =0a(29) =21

External references