G.f. A(x) satisfies A(x) = ( 1 + 9*x*(1 + x*A(x)) )^(1/3).
A372003
G.f. A(x) satisfies A(x) = ( 1 + 9*x*(1 + x*A(x)) )^(1/3).
Terms
- a(0) =1a(1) =3a(2) =-6a(3) =36a(4) =-216a(5) =1404a(6) =-9648a(7) =68904a(8) =-506304a(9) =3802464a(10) =-29055024a(11) =225142416a(12) =-1764900576a(13) =13970400480a(14) =-111506362560a(15) =896391836928
External references
- oeis: A372003