Number of closed forest meander systems with 2n crossings.
A060148
Number of closed forest meander systems with 2n crossings.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =97a(5) =733a(6) =6147a(7) =55541a(8) =530773a(9) =5298723a(10) =54780831a(11) =582817337a(12) =6350647873a(13) =70614662303a(14) =798935833885
External references
- oeis: A060148