82863

Appears in sequences

• Numbers k such that all the following properties hold: (i) k*reverse(k) is a square; (ii) k != reverse(k); (iii) k and reverse(k) are not both squares; and (iv) k and reverse(k) have the same number of digits.at n=29A082994
• a(n) is the number of n-digit positive integers with exactly two distinct base 10 digits.at n=10A335843