Number of separate orbits/cycles to which the Catalan bijections A072796/A072797 partition each A000108(n) structures encoded in the range [A014137(n-1)..A014138(n-1)] of the sequence A014486/A063171.
A073191
Number of separate orbits/cycles to which the Catalan bijections A072796/A072797 partition each A000108(n) structures encoded in the range [A014137(n-1)..A014138(n-1)] of the sequence A014486/A063171.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =11a(5) =31a(6) =96a(7) =305a(8) =1007a(9) =3389a(10) =11636a(11) =40498a(12) =142714a(13) =507870a(14) =1823040a(15) =6591885a(16) =23989419a(17) =87795473a(18) =322922652a(19) =1193058230a(20) =4425547638a(21) =16475756738a(22) =61539293424a(23) =230548633954a(24) =866095934598
External references
- oeis: A073191