Number of independent generators of degree n of the algebra of Free quasi-symmetric functions (or Malvenuto-Reutenauer algebra of permutations) as a dendriform dialgebra (i.e., number of totally primitive elements).
A122827
Number of independent generators of degree n of the algebra of Free quasi-symmetric functions (or Malvenuto-Reutenauer algebra of permutations) as a dendriform dialgebra (i.e., number of totally primitive elements).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =6a(4) =39a(5) =284a(6) =2305a(7) =20682a(8) =203651a(9) =2186744a(10) =25463925a(11) =319989030a(12) =4320183527a(13) =62412737460a(14) =961264517369
External references
- oeis: A122827