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

A303836

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

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =10a(5) =26a(6) =103a(7) =371a(8) =1552a(9) =6475a(10) =28414a(11) =126530a(12) =577188a(13) =2670332a(14) =12538434a(15) =59554199a(16) =285882600a(17) =1384875627a(18) =6763821250a(19) =33276183371a(20) =164789380052a(21) =820923863918

External references