659380domain: NAppears in sequencesAntidiagonal sums of triangle A097186, in which the n-th row polynomial R_n(y) is formed from the initial (n+1) terms of g.f. A057083(y)^(n+1), where R_n(1/3) = 3^n for all n>=0.at n=13A097187G.f.: A(x) = Sum_{n>=0} x^n * Product_{d|n} (1 + x^d)^(n/d).at n=24A193200