Number of unrooted self-avoiding walks with n steps that can make turns from the set +-Pi/5, +-3*Pi/5.

A306175

Number of unrooted self-avoiding walks with n steps that can make turns from the set +-Pi/5, +-3*Pi/5.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =19a(4) =66a(5) =229a(6) =831a(7) =2991a(8) =10859a(9) =39173a(10) =141631a(11) =510079a(12) =1835583a(13) =6586932a(14) =23614821a(15) =84492315a(16) =302014619a(17) =1077860479a(18) =3843695976a(19) =13690026688

External references