1689360653domain: NAppears in sequencesA symmetrical triangle sequence T(n, m) = 2 + binomial(n, m)^3 - 3*binomial(n, m)*Eulerian(n+1, m) + Eulerian(n+1, m)^3.at n=23A174914A symmetrical triangle sequence T(n, m) = 2 + binomial(n, m)^3 - 3*binomial(n, m)*Eulerian(n+1, m) + Eulerian(n+1, m)^3.at n=25A174914