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 A007616 Palindromic reflectable primes. (Formerly M2911) 2
 3, 11, 101, 131, 181, 313, 383, 10301, 11311, 13331, 13831, 18181, 30103, 30803, 31013, 38083, 38183, 1003001, 1008001, 1180811, 1183811, 1300031, 1303031, 1311131, 1333331, 1338331, 1831381, 1880881, 1881881, 1883881, 3001003, 3083803, 3103013, 3181813, 3310133 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Also called triadic primes. - Arkadiusz Wesolowski, Apr 10 2011 Members of A002385 whose digits are in [0,1,3,8]. - Robert Israel, Mar 16 2017 REFERENCES N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). C. W. Trigg, Reflectable primes, J. Rec. Math., 15 (No. 1, 1983), p. 252. LINKS Robert Israel, Table of n, a(n) for n = 1..10000 Chris Caldwell, The Prime Glossary, Triadic prime G. L. Honaker, Jr. and Chris Caldwell, Prime Curios! 101838101 C. W. Trigg, Reflectable primes, J. Rec. Math., 15 (No. 4, 1983), p. 252. (Annotated scanned copy) MAPLE S[1]:= [0, 1, 3, 8] for i from 2 to 5 do   S[i]:= map(t -> seq(j*(10^(2*i-2)+1)+10*t, j=[0, 1, 3, 8]), S[i-1]) od: sort(select(isprime, [11, seq(op(S[i]), i=1..5)])); # Robert Israel, Mar 16 2017 CROSSREFS Cf. A002385. Sequence in context: A008561 A072640 A154299 * A121045 A092245 A238446 Adjacent sequences:  A007613 A007614 A007615 * A007617 A007618 A007619 KEYWORD nonn,base AUTHOR EXTENSIONS More terms from Arkadiusz Wesolowski, Sep 30 2011 STATUS approved

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