The 4th iteration of x*C(x) where C(x) is the Catalan function (A000108).
A158827
The 4th iteration of x*C(x) where C(x) is the Catalan function (A000108).
Terms
- a(0) =1a(1) =4a(2) =20a(3) =110a(4) =640a(5) =3870a(6) =24084a(7) =153306a(8) =993978a(9) =6544242a(10) =43652340a(11) =294469974a(12) =2006018748a(13) =13784115468a(14) =95444016984a(15) =665407010349
External references
- oeis: A158827