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A164824
Lucas pseudoprimes whose reversal is prime.
1
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
OFFSET
1,1
FORMULA
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}.
EXAMPLE
a(1) = 10877 = 73 * 149 because that is the 8th Lucas pseudoprime, and its reversal 77801 is prime.
CROSSREFS
KEYWORD
easy,nonn,base,less
AUTHOR
Jonathan Vos Post, Aug 27 2009
EXTENSIONS
More terms from R. J. Mathar, Sep 27 2009
STATUS
approved