179472domain: NAppears in sequencesSmallest number a(n) > n such that a(n)! contains n! as a substring.at n=14A086654a(n) > a(n-1) is the smallest number such that a(n)! contains a(n-1)! as a substring, with a(0) = 0.at n=4A306155Triangle read by rows: T(n, k) = n! * 3^k * hypergeom([-k], [-n], 2/3).at n=31A375600