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A164824
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Lucas pseudoprimes whose reversal is prime.
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1
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10877, 97921, 113573, 163081, 186961, 302101, 1106327, 1149851, 1317121, 1392169, 1533601, 1653601, 1690501, 3218801, 3338221, 3399527, 3967201, 7405201, 7640137, 7678321, 9264097, 9439201, 9532033, 9582145, 10237921
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..25.
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FORMULA
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A005845 INTERSECTION (A006567 UNION A007500). {n in A005845 such that A004086(n) is in A000040}. {n such that n | (L_n - 1), where n is composite and L_n = Lucas numbers A000032, and R(n) is prime}.
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EXAMPLE
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a(1) = 10877 = 73 * 149 because that is the 8th Lucas pseudoprime, and its reversal 77801 is prime.
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CROSSREFS
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Cf. A000040, A004086, A005845, A006567, A007500.
Sequence in context: A334003 A214243 A250896 * A329196 A083513 A084277
Adjacent sequences: A164821 A164822 A164823 * A164825 A164826 A164827
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KEYWORD
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easy,nonn,base,less
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AUTHOR
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Jonathan Vos Post, Aug 27 2009
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EXTENSIONS
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More terms from R. J. Mathar, Sep 27 2009
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STATUS
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approved
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