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A096149 Numbers n such that (2^n-3)*2^n+1 is prime. 0
2, 3, 5, 7, 9, 11, 13, 15, 19, 35, 39, 45, 51, 59, 213, 607, 1315, 1435, 3901, 4921, 5255 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(1) through a(21) have been proved to be prime with WinPFGW. No more terms up to 10000.

Results were computed using the PrimeFormGW (PFGW) primality-testing program. - Hugo Pfoertner, Nov 14 2019

LINKS

Table of n, a(n) for n=1..21.

PROG

(PARI) is(n)=ispseudoprime((2^n-3)*2^n+1) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Sequence in context: A023543 A129895 A256212 * A033055 A287374 A186390

Adjacent sequences:  A096146 A096147 A096148 * A096150 A096151 A096152

KEYWORD

nonn,more,hard

AUTHOR

Jason Earls, Jul 24 2004

STATUS

approved

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Last modified December 7 04:21 EST 2021. Contains 349567 sequences. (Running on oeis4.)