879252domain: NAppears in sequencesExpansion of Product_{k>=0} ((1+x^(3*k+1))/(1-x^(3*k+1)))^3.at n=28A261651E.g.f. satisfies A(x) = 1 / (1 + log(1 - x * A(x)^(1/2)))^2.at n=6A375899