70207

Properties

Appears in sequences

• Lucky numbers that are both palindromic and prime.at n=9A031881
• Palindromic prime lengths of factorials: see A035067.at n=25A035068
• Palindromic and prime Fibonacci-lucky numbers.at n=30A039679
• Base-10 palindromes that start with 7.at n=24A043042
• a(0)=1, a(1)=1, a(n) = largest prime <= a(n-1) + a(n-2).at n=25A055500
• a(0)=1, a(1)=2, a(n) = largest prime < a(n-1)+a(n-2).at n=26A055501
• Primes starting and ending with 7.at n=39A062334
• First highest palindromic prime pyramid with a(1)=2 such that (number of digits in a(n+1)) = (number of digits in a(n)) + 4.at n=1A071067
• Palindromic primes with at least one zero digit.at n=13A071783
• Palindromic primes with prime middle digit.at n=36A076611
• Palindromic primes with successive increasing difference: a(k)-a(k-1) < a(k+1)- a(k).at n=9A078790
• Palindromic primes with middle digit 2.at n=7A082438
• Palindromic prime units W appearing twice in first-order fractal palindromic primes WmW.at n=39A082598
• a(n) = smallest palindromic prime that begins with A082768(n), or 0 if no such number exists.at n=24A082769
• 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=24A082770
• Palindromic primes whose digit permutation yields at least one other palindromic prime.at n=9A082808
• Duplicate of A082769.at n=24A083968
• Least palindromic prime beginning with A089743(n).at n=26A089744
• a(1) = 1; a(n) = 2*a(n-1) + (number of digits in a(n-1)).at n=15A117079
• Palindromic primes with prime digital roots.at n=38A157868