Related to enumeration of rooted catapolyoctagons (see Cyvin reference for precise definition).
A121116
Related to enumeration of rooted catapolyoctagons (see Cyvin reference for precise definition).
Terms
- a(0) =0a(1) =0a(2) =1a(3) =15a(4) =168a(5) =1703a(6) =16539a(7) =157416a(8) =1483900a(9) =13928238a(10) =130547475a(11) =1223803350a(12) =11484513612a(13) =107940809223
External references
- oeis: A121116