101222

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=11A023058
• Templates for lunar primes in any base (version 1).at n=22A171750
• Templates for lunar primes in any base (version 3).at n=15A191420
• Fixed points of permutations A256210 and A256371.at n=29A256372
• Numbers k such that (56*10^k - 47)/9 is prime.at n=21A286435