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A179034 Emirps whose only prime digits are 3's. 2
13, 31, 113, 311, 389, 983, 1031, 1033, 1103, 1193, 1301, 1381, 1399, 1439, 1831, 1913, 1933, 3011, 3019, 3049, 3083, 3089, 3109, 3163, 3169, 3191, 3301, 3319, 3343, 3389, 3391, 3433, 3463, 3469, 3613, 3643, 3803, 3889, 3911, 9013, 9103, 9133, 9341 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

em3Q[n_]:=Module[{idn=IntegerDigits[n], ridn}, ridn=Reverse[idn]; idn!= ridn&&PrimeQ[FromDigits[ridn] && Count[idn, 2] == Count[idn, 5] == Count[idn, 7] == 0&&Count[idn, 3]>0]]; Select[Prime[Range[1200]], em3Q] (* Harvey P. Dale, Nov 30 2012 *)

CROSSREFS

Cf. A006567, A179035.

Sequence in context: A062339 A043226 A044006 * A179035 A007628 A335787

Adjacent sequences:  A179031 A179032 A179033 * A179035 A179036 A179037

KEYWORD

base,nonn

AUTHOR

Lekraj Beedassy, Jun 25 2010

EXTENSIONS

Corrected by Ray Chandler, Jul 13 2010

STATUS

approved

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Last modified November 26 23:41 EST 2020. Contains 338670 sequences. (Running on oeis4.)