Number of noncrossing path sets on n nodes with isolated vertices allowed.

A390910

Number of noncrossing path sets on n nodes with isolated vertices allowed.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =7a(4) =29a(5) =126a(6) =564a(7) =2591a(8) =12171a(9) =58237a(10) =282918a(11) =1391820a(12) =6919788a(13) =34714304a(14) =175505312a(15) =893311991a(16) =4573948519a(17) =23542885643a(18) =121747858590a(19) =632247484031

External references