Number of objects generated by the Combstruct grammar defined in the Maple program. See the link for the grammar specification.
A052818
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) =1a(3) =3a(4) =10a(5) =37a(6) =144a(7) =593a(8) =2515a(9) =10975a(10) =48847a(11) =221071a(12) =1013886a(13) =4702530a(14) =22017327a(15) =103925505a(16) =494000139a(17) =2362666375a(18) =11361442399a(19) =54898445359a(20) =266417109839
External references
- oeis: A052818