51215

Appears in sequences

• Numbers that are palindromic and divisible by 5.at n=35A043040
• Numbers k such that phi(k) + phi(k+3) = phi(k+1) + phi(k+2).at n=14A076665
• Palindromes in A085936.at n=19A085937
• Palindromic primes in base 6 (written in base 6).at n=22A117701
• Start with 1 and repeatedly reverse the digits and add 38 to get the next term.at n=20A118634