113126domain: NAppears in sequencesBinomial transform of [1, 5, 15, 35, 70, 0, 0, 0, ...].at n=15A143132Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section.at n=18A286783Column 2 of A286783.at n=3A287042