Number of noncrossing path sets on n nodes up to rotation and reflection with each path having a prime number of nodes.

A303731

Number of noncrossing path sets on n nodes up to rotation and reflection with each path having a prime number of nodes.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =5a(6) =6a(7) =27a(8) =53a(9) =140a(10) =649a(11) =1297a(12) =6355a(13) =18038a(14) =63226a(15) =241741a(16) =744711a(17) =3008107a(18) =10028056a(19) =37270169a(20) =138083464a(21) =488933323a(22) =1872525356a(23) =6763888465a(24) =25498771059a(25) =95467533318a(26) =355595703773

External references