A229499 Palindromic prime numbers == 4 (mod 9).

373, 787, 12721, 14341, 18481, 30703, 31513, 32323, 34843, 37273, 38083, 73237, 74047, 77377, 93739, 97879, 98689, 1035301, 1043401, 1092901, 1117111, 1190911, 1215121, 1280821, 1338331, 1362631, 1411141, 1444441, 1452541, 1469641, 1542451, 1550551, 1583851

Offset

1,1

Links

Shyam Sunder Gupta, Table of n, a(n) for n = 1..987

Mathematica

t = {}; Do[z = n*10^(IntegerLength[n] - 1) + FromDigits@Rest@Reverse@IntegerDigits[n]; If[PrimeQ[z] && Mod[z, 9] == 4, AppendTo[t, z]], {n, 1, 99999}]; t

Crossrefs

Cf. A002385, A229875.

Sequence in context: A142921 A263724 A133559 * A023313 A213301 A213300

Adjacent sequences: A229496 A229497 A229498 * A229500 A229501 A229502

Keyword

nonn,base,less

Author

Shyam Sunder Gupta, Oct 02 2013

Status

approved