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A081220 Palindromic primes = 1 mod 4. 3
5, 101, 181, 313, 353, 373, 757, 797, 929, 10301, 10501, 10601, 12421, 12721, 12821, 14341, 14741, 16061, 16361, 16561, 16661, 18181, 18481, 31013, 31513, 33533, 35053, 35153, 35353, 35753, 37273, 37573, 39293, 71317, 71917, 73037, 73237 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Intersection of A002385 and A002144.

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1500

MATHEMATICA

Select[Select[Prime[Range[10000]], # == FromDigits[Reverse[IntegerDigits[ # ]]] &], Mod[ #, 4] == 1 &] - Harvey P. Dale, Oct 15 2006

Select[Prime[Range[7500]], #==IntegerReverse[#]&&Mod[#, 4]==1&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Oct 18 2016 *)

CROSSREFS

Cf. A002385, A002144.

Sequence in context: A090436 A140616 A087456 * A210362 A041187 A266235

Adjacent sequences:  A081217 A081218 A081219 * A081221 A081222 A081223

KEYWORD

nonn,base

AUTHOR

Lekraj Beedassy, Apr 18 2003, corrected Sep 28 2006

EXTENSIONS

Corrected by Harvey P. Dale, Oct 15 2006

STATUS

approved

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Last modified February 24 17:29 EST 2020. Contains 332209 sequences. (Running on oeis4.)