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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..25.

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

Cf. A000040, A004086, A005845, A006567, A007500.

Sequence in context: A334003 A214243 A250896 * A329196 A083513 A084277

Adjacent sequences:  A164821 A164822 A164823 * A164825 A164826 A164827

KEYWORD

easy,nonn,base,less

AUTHOR

Jonathan Vos Post, Aug 27 2009

EXTENSIONS

More terms from R. J. Mathar, Sep 27 2009

STATUS

approved

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Last modified May 22 09:50 EDT 2022. Contains 353949 sequences. (Running on oeis4.)