A222723 Palindromic primes starting with a digit 1.

11, 101, 131, 151, 181, 191, 10301, 10501, 10601, 11311, 11411, 12421, 12721, 12821, 13331, 13831, 13931, 14341, 14741, 15451, 15551, 16061, 16361, 16561, 16661, 17471, 17971, 18181, 18481, 19391, 19891, 19991, 1003001, 1008001, 1022201, 1028201, 1035301, 1043401

Offset: 1

Author

Jaroslav Krizek, Mar 03 2013

Keywords

• nonn
• base

Comments

Subsequence of A002385 (palindromic primes) and A002113 (palindromic numbers). Complement of A222724 (palindromic nonprime numbers starting with a digit 1) with respect to A043036 (palindromic numbers starting with a digit 1).

Links

• Jaroslav Krizek, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A002385, A002113, A222724, A043036.

Programs

Mathematica

Select[Prime[Range[85000]],PalindromeQ[#]&&IntegerDigits[#][[1]]==1&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Mar 14 2018 *)