Number of objects generated by the Combstruct grammar defined in the Maple program. See the link for the grammar specification.
A052891
Number of objects generated by the Combstruct grammar defined in the Maple program. See the link for the grammar specification.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =5a(4) =16a(5) =56a(6) =217a(7) =876a(8) =3686a(9) =15903a(10) =70103a(11) =314042a(12) =1426076a(13) =6548060a(14) =30352695a(15) =141837086a(16) =667469159a(17) =3160370217a(18) =15045244375a(19) =71970393570a(20) =345766441537
External references
- oeis: A052891