166664

Appears in sequences

• Total number of positive integers below 10^n with 4 positive squares in their representation as sum of squares.at n=5A167615
• Let p = first digit of n, q = number obtained if p is removed from n; let r = last digit of n, s = number obtained if r is removed from n; sequence give n such that p*q = r*s != 0, p! = q, and r! = s.at n=45A245364
• Numbers in A245385 where P, Q, R, and S are all distinct.at n=20A245386