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A222723 Palindromic primes starting with a digit 1. 3
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

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

MATHEMATICA

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

CROSSREFS

Cf. A002385, A002113, A222724, A043036.

Sequence in context: A208362 A159613 A062332 * A088281 A068685 A109830

Adjacent sequences:  A222720 A222721 A222722 * A222724 A222725 A222726

KEYWORD

nonn,base

AUTHOR

Jaroslav Krizek, Mar 03 2013

STATUS

approved

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Last modified December 1 13:00 EST 2021. Contains 349429 sequences. (Running on oeis4.)