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A119386 Numbers n such that 2^(2*n)-(2*n-1) is prime. 0
0, 1, 2, 3, 8, 9, 27, 29, 50, 60, 252, 651, 1617 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..13.

MATHEMATICA

Select[Range[0, 2000], PrimeQ[2^(2#)-(2#-1)]&] Harvey P. Dale, May 20 2012

PROG

(PARI) for(x=0, 1000, if(isprime(2^(2*x)-(2*x-1)), print1(x, ", ")))

CROSSREFS

Sequence in context: A085453 A271394 A030439 * A162219 A140484 A087034

Adjacent sequences:  A119383 A119384 A119385 * A119387 A119388 A119389

KEYWORD

nonn

AUTHOR

Jorge Coveiro, Jul 25 2006

STATUS

approved

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Last modified September 21 12:54 EDT 2021. Contains 347598 sequences. (Running on oeis4.)