G.f.: A(x) = ( Sum_{n>=0} 3^n*(2*n+1) * x^(n*(n+1)/2) )^(1/3).
A202210
G.f.: A(x) = ( Sum_{n>=0} 3^n*(2*n+1) * x^(n*(n+1)/2) )^(1/3).
Terms
- a(0) =1a(1) =3a(2) =-9a(3) =60a(4) =-360a(5) =2457a(6) =-18036a(7) =138429a(8) =-1093500a(9) =8833140a(10) =-72622224a(11) =605563452a(12) =-5108366277a(13) =43512281460a(14) =-373690245420
External references
- oeis: A202210