Number of unrooted self-avoiding walks with n steps that can make turns from the set +-Pi/9, +-3*Pi/9, +-5*Pi/9, +-7*Pi/9.

A306179

Number of unrooted self-avoiding walks with n steps that can make turns from the set +-Pi/9, +-3*Pi/9, +-5*Pi/9, +-7*Pi/9.

Terms

    a(0) =1a(1) =4a(2) =19a(3) =128a(4) =861a(5) =6051a(6) =42475a(7) =297993a(8) =2081607a(9) =14485077a(10) =100475175a(11) =694838429a(12) =4793805002

External references