Number of closed meanders with 2 components and 2n bridges.
A006657
Number of closed meanders with 2 components and 2n bridges.
Terms
- a(0) =2a(1) =12a(2) =84a(3) =640a(4) =5236a(5) =45164a(6) =406012a(7) =3772008a(8) =35994184a(9) =351173328a(10) =3490681428a(11) =35253449296a(12) =360946635312
External references
- oeis: A006657