A109830 Palindromic primes with both the number of digits and the digit sum also palindromic primes.

11, 101, 131, 151, 191, 313, 353, 10301, 10501, 11311, 13331, 30103, 1003001, 1123211, 1201021, 1221221, 1303031, 1311131, 3001003, 3103013, 10000500001, 10000900001, 10002520001, 10013131001, 10111311101, 10301110301

Offset

1,1

Links

Chai Wah Wu, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A082806 = palindromes which are prime and the sum of the digits is also prime. A082806 = palindromic primes with a prime digit sum.

Sequence in context: A222723 A088281 A068685 * A052035 A083144 A058411

Adjacent sequences: A109827 A109828 A109829 * A109831 A109832 A109833

Keyword

base,nonn

Author

Zak Seidov, Jul 04 2005

Extensions

More terms from Joshua Zucker, May 17 2006

Status

approved