Triangle read by rows where T(n,k) is the number of unlabeled connected multigraphs with loops with n edges and k vertices.

A322115

Triangle read by rows where T(n,k) is the number of unlabeled connected multigraphs with loops with n edges and k vertices.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =4a(8) =4a(9) =2a(10) =1a(11) =6a(12) =11a(13) =9a(14) =3a(15) =1a(16) =9a(17) =25a(18) =34a(19) =20a(20) =6a(21) =1a(22) =12a(23) =52a(24) =104a(25) =99a(26) =49a(27) =11a(28) =1a(29) =16

External references