102212

Appears in sequences

• Positive numbers k such that k and 2*k are anagrams of each other in base 3 (k is written here in base 3).at n=14A023058
• Templates for lunar primes in any base (version 1).at n=25A171750
• Templates for lunar primes in any base (version 3).at n=18A191420
• Positive integers, written in base 3, with the property that if the base-3 representation is reversed the result is twice the original number.at n=2A223077