Number of n-step up-side self-avoiding walks on the lattice strip {-1,0,1} x Z (up-side means that the walks move up and sideways but not down).
A171856
Number of n-step up-side self-avoiding walks on the lattice strip {-1,0,1} x Z (up-side means that the walks move up and sideways but not down).
Terms
- a(0) =1a(1) =3a(2) =5a(3) =9a(4) =17a(5) =33a(6) =63a(7) =119a(8) =225a(9) =427a(10) =811a(11) =1539a(12) =2919a(13) =5537a(14) =10505a(15) =19931a(16) =37813a(17) =71737a(18) =136097a(19) =258201a(20) =489855a(21) =929343a(22) =1763129a(23) =3344971a(24) =6346011a(25) =12039523a(26) =22841135a(27) =43333729a(28) =82211857a(29) =155970643
External references
- oeis: A171856