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A229880 Palindromic prime numbers == 7 (mod 9). 1
7, 151, 313, 727, 10501, 11311, 13831, 15451, 17971, 30103, 35053, 37573, 70207, 71917, 72727, 78487, 90709, 93139, 94849, 96469, 1062601, 1160611, 1177711, 1193911, 1201021, 1218121, 1242421, 1250521, 1422241, 1447441, 1463641, 1496941, 1520251, 1594951 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Shyam Sunder Gupta, Table of n, a(n) for n = 1..1007

MATHEMATICA

t = {}; Do[z = n*10^(IntegerLength[n] - 1) + FromDigits@Rest@Reverse@IntegerDigits[n]; If[PrimeQ[z] && Mod[z, 9] == 7, AppendTo[t, z]], {n, 1, 99999}]; t

CROSSREFS

Cf. A002385, A229875.

Sequence in context: A308581 A305467 A229806 * A070248 A329010 A309855

Adjacent sequences:  A229877 A229878 A229879 * A229881 A229882 A229883

KEYWORD

nonn,base,less

AUTHOR

Shyam Sunder Gupta, Oct 02 2013

STATUS

approved

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Last modified July 15 23:32 EDT 2020. Contains 335774 sequences. (Running on oeis4.)