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A273522 Numbers n such that 12*14^n-1 is prime. 0
1, 2, 4, 6, 22, 24, 26, 37, 47, 257, 374, 1848, 3128, 3468, 6943, 9663 (list; graph; refs; listen; history; text; internal format)



Table of n, a(n) for n=0..15.

J. Brillhart, D. H. Lehmer and J. L. Selfridge, New primality criteria and factorizations of 2^m+-1, Math. Compl. 29 (1975) 620-647.

John Eisenmann, Prime Numbers of the Form a * 14^b - 1.

Victor Shoup, A Computational Introduction to Number Theory and Algebra, 2008, page 348.

Eric Weisstein's World of Mathematics, Lucas Sequence.

Eric Weisstein's World of Mathematics, Rabin-Miller Strong Pseudoprime Test.


(PARI) is(n)=ispseudoprime(12*14^n-1) \\ Charles R Greathouse IV, Jun 08 2016


Sequence in context: A176652 A251724 A326363 * A227626 A152482 A045960

Adjacent sequences:  A273519 A273520 A273521 * A273523 A273524 A273525




Jack P. Eisenmann, May 23 2016



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Last modified December 11 12:33 EST 2019. Contains 329916 sequences. (Running on oeis4.)