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

A303835

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

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =8a(5) =19a(6) =64a(7) =212a(8) =833a(9) =3360a(10) =14476a(11) =63848a(12) =289892a(13) =1338000a(14) =6275589a(15) =29791100a(16) =142973014a(17) =692507861a(18) =3382070233a(19) =16638445745a(20) =82395500651a(21) =410463736691

External references