G.f.: A(x) = ( Sum_{n>=0} 9^n*(2*n+1) * (-x)^(n*(n+1)/2) )^(-1/3).
A202438
G.f.: A(x) = ( Sum_{n>=0} 9^n*(2*n+1) * (-x)^(n*(n+1)/2) )^(-1/3).
Terms
- a(0) =1a(1) =9a(2) =162a(3) =3537a(4) =81405a(5) =1944243a(6) =47615121a(7) =1186699005a(8) =29960950842a(9) =764012506770
External references
- oeis: A202438