Regular triangle where T(n,k) is the number of labeled connected multigraphs with loops with n edges and k vertices.
A322148
Regular triangle where T(n,k) is the number of labeled connected multigraphs with loops with n edges and k vertices.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =3a(6) =1a(7) =6a(8) =16a(9) =16a(10) =1a(11) =10a(12) =51a(13) =127a(14) =125a(15) =1a(16) =15a(17) =126a(18) =574a(19) =1347a(20) =1296a(21) =1a(22) =21a(23) =266a(24) =1939a(25) =8050a(26) =17916a(27) =16807a(28) =1a(29) =28
External references
- oeis: A322148