A103834 Palindromic primes pp such that 9876543210pp0123456789 is palindromic prime.

131, 919, 12821, 19991, 35353, 37273, 93139, 94049, 1065601, 1093901, 1126211, 1193911, 1201021, 1362631, 1422241, 1646461, 1707071, 1826281, 1952591, 1988891, 3285823, 3444443, 3452543, 3517153, 3601063, 3673763, 7461647

Offset

1,1

Comments

All palindromic primes have odd number of digits.

There are two 3-digit, six 5-digit and 42 7-digit palprimes pp such that 9876543210pp0123456789 is palindromic prime.

Links

Chai Wah Wu, Table of n, a(n) for n = 1..10000

Mathematica

Select[Prime[Range[510000]], PalindromeQ[#]&&PrimeQ[FromDigits[Join[Range[9, 0, -1], IntegerDigits[ #], Range[0, 9]]]]&] (* Harvey P. Dale, Jun 18 2023 *)

Crossrefs

Sequence in context: A105837 A142205 A142807 * A281393 A169645 A221154

Adjacent sequences: A103831 A103832 A103833 * A103835 A103836 A103837

Keyword

nonn,base

Author

Zak Seidov, Mar 30 2005

Status

approved