Number of noncrossing path sets on n nodes with each path having at least two nodes.

A303730

Number of noncrossing path sets on n nodes with each path having at least two nodes.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =3a(4) =10a(5) =35a(6) =128a(7) =483a(8) =1866a(9) =7344a(10) =29342a(11) =118701a(12) =485249a(13) =2001467a(14) =8319019a(15) =34810084a(16) =146519286a(17) =619939204a(18) =2635257950a(19) =11248889770a(20) =48198305528a(21) =207222648334a(22) =893704746508

External references