Number of 2n-step closed paths on quasi-regular rhombic (rhombille) lattice starting from a degree-3 node.
A357770
Number of 2n-step closed paths on quasi-regular rhombic (rhombille) lattice starting from a degree-3 node.
Terms
- a(0) =1a(1) =3a(2) =30a(3) =372a(4) =5112a(5) =74448a(6) =1125408a(7) =17461440a(8) =276193152a(9) =4433878272a(10) =72022049280
External references
- oeis: A357770