Number of n-step 2-dimensional closed self-avoiding paths on triangular lattice, reduced for symmetry, i.e., where rotations and reflections are not counted as distinct.

A284869

Number of n-step 2-dimensional closed self-avoiding paths on triangular lattice, reduced for symmetry, i.e., where rotations and reflections are not counted as distinct.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =1a(4) =1a(5) =4a(6) =5a(7) =16a(8) =37a(9) =120a(10) =344a(11) =1175a(12) =3807a(13) =13224a(14) =45645a(15) =161705a(16) =575325a(17) =2074088a(18) =7521818a(19) =27502445a(20) =101134999a(21) =374128188

External references