1392300domain: NAppears in sequencesa(n) = 5*(n+1)*binomial(n+4,6).at n=12A027802Numbers with prime factorization pqrs^2t^2u^2.at n=4A190391LCM of the denominators of the terms of the n-th row of the triangle defined by T(n,k) = (prime(n)-prime(k))/(prime(n)+prime(k)) for k=1 to n-1.at n=8A385099