213312

Appears in sequences

• Palindromes with exactly 9 prime factors (counted with multiplicity).at n=5A046335
• Palindromes with exactly 9 palindromic prime factors (counted with multiplicity).at n=3A046383
• Triangle read by rows in which row n gives n smallest n-digit multiples of n that are palindromes.at n=19A084024
• Palindromic numbers that set a new record for number of palindromic divisors.at n=14A084324
• Palindromes formed from the concatenation of n, sum of n and R(n), and R(n) with its leading zeros; or 0 if no such palindrome exists. R(k) is the digit reversal of k.at n=20A084998
• Beginning with 1, palindromes such that successive differences are distinct primes.at n=22A088052
• Numbers m such that the smallest digit in the decimal expansion of 1/m is 4, ignoring leading and trailing 0's.at n=33A352158
• a(n) is the least palindrome that has exactly n palindromic divisors other than itself and 1.at n=24A378140