-1957domain: ZAppears in sequencesCoefficient triangle of permutation-based polynomials: p(x,n)=Product[x - n!/(n - i)!, {i, 0, n}].at n=34A158451Product_{n>=1} (1 + a(n)*x^n) = 1 + x + Sum_{n>=2} prime(n-1)*x^n.at n=29A353606