Number of closed-loop self-avoiding paths of length 4n on a 2D square lattice where no step can be in the same direction as the previous step.
A337550
Number of closed-loop self-avoiding paths of length 4n on a 2D square lattice where no step can be in the same direction as the previous step.
Terms
- a(0) =8a(1) =0a(2) =24a(3) =64a(4) =360a(5) =1728a(6) =8624a(7) =43776a(8) =225216a(9) =1173280a(10) =6182704a(11) =32905536a(12) =176657000a(13) =955629920a(14) =5204178360a(15) =28509374976a(16) =157005901896a(17) =868756900608
External references
- oeis: A337550