Number of unlabeled initially-finally connected digraphs with n arcs.
A350906
Number of unlabeled initially-finally connected digraphs with n arcs.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =16a(5) =56a(6) =241a(7) =1111a(8) =5748a(9) =31912a(10) =190328a(11) =1204317a(12) =8050341a(13) =56516303a(14) =415128256a(15) =3179020729a(16) =25308005049a(17) =208918893640
External references
- oeis: A350906