112644domain: NAppears in sequencesNumbers n such that sigma(phi(n))-phi(n) = phi(sigma(n)-n).at n=12A132793Triangle T(n,k), n>=1, 0<=k<=n-1, read by rows: T(n,k)/(n-1)! is the coefficient of x^k in polynomial p_n for the n-th row sequence of A145153.at n=49A1451424th column of A145142.at n=5A145146