30703

Properties

Appears in sequences

• Octal palindromes which are also primes.at n=29A006341
• Patterns in a dual ring.at n=16A007574
• Primes that remain prime through 3 iterations of function f(x) = 5x + 8.at n=39A023286
• Palindromic primes in which parity of digits alternates.at n=19A030150
• Lesser of two consecutive palindromes, both of which are prime.at n=13A032593
• Palindromic prime lengths of factorials: see A035067.at n=21A035068
• Base-10 palindromes that starts with 3.at n=29A043038
• Palindromic primes whose sum of squared digits is also prime.at n=21A052035
• 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=14A068686
• Palindromic primes with at least one zero digit.at n=8A071783
• Palindromic primes with prime middle digit.at n=23A076611
• Palindromic primes with middle digit 7.at n=4A082443
• Palindromic prime units W appearing twice in first-order fractal palindromic primes WmW.at n=25A082598
• Palindromic prime units W appearing four times in second-order fractal palindromic primes WxWmWxW, where part WxW is also a palindromic prime.at n=17A082599
• Palindromic prime units W appearing eight times in third-order fractal palindromic primes WvWxWvWmWvWxWvW, where parts WvWxWvW, WvW are also palindromic primes.at n=6A082600
• a(1) = 7, a(n) = smallest palindromic prime obtained by inserting digit anywhere in a(n-1).at n=2A082624
• Palindromes which are prime and the sum of the digits is also prime.at n=30A082806
• Palindromic primes p with property that another palindromic prime with as many digits can be obtained by using all the digits of p with a different frequency >=1 (every digit is used at least once).at n=15A082807
• Palindromic primes whose digit permutation yields at least one other palindromic prime.at n=5A082808
• Primes p(x) satisfying the following conditions: (a) A082882(x)=1; (b) {p(x),p(x+1)} are not twin primes; (c) values of A075860(j) for j composites between these two non-twin primes are identical.at n=13A082883