90709

Properties

Appears in sequences

• Palindromic primes in which parity of digits alternates.at n=30A030150
• Palindromic prime lengths of factorials: see A035067.at n=31A035068
• Numbers k such that k-th and (k+1)-st term of A038593 differ by 5.at n=29A038636
• Numerators of continued fraction convergents to sqrt(14).at n=12A041020
• Numerators of continued fraction convergents to sqrt(126).at n=6A041228
• Palindromes that start with 9.at n=29A043044
• Palindromes expressible as the sum of 3 consecutive palindromic primes.at n=1A046491
• Palindromic primes expressible as the sum of 3 consecutive palindromic primes.at n=1A046492
• Primes expressible as the sum of 3 consecutive palindromic primes.at n=22A046493
• Palindromic primes whose sum of squared digits is also prime.at n=30A052035
• Palindromic primes of the form 'primemirp' resulting from A054217.at n=15A054218
• Let p = abc..k be a prime in base 10. Define mirror(p) = abc...k...cba. Sequence gives primes of the form mirror(p) for some p.at n=20A068686
• Palindromic primes with at least one zero digit.at n=18A071783
• Palindromic primes with middle digit 7.at n=10A082443
• Palindromic primes whose digital root equals their middle digits.at n=8A082518
• Palindromic prime units W appearing four times in second-order fractal palindromic primes WxWmWxW, where part WxW is also a palindromic prime.at n=32A082599
• a(n) = smallest palindromic prime that begins with A082768(n), or 0 if no such number exists.at n=34A082769
• a(n) = smallest palindromic prime that begins with A082768(n) and contains more than twice the number of digits in A082768(n), or 0 if no such number exists.at n=34A082770
• Palindromes in A087386.at n=29A087387
• Palindromic primes that yield a prime when sandwiched between two 9's.at n=21A088272