A323201 Numbers k such that 463*2^k+1 is prime.

6, 8, 30, 62, 96, 118, 222, 332, 472, 528, 1086, 1388, 1720, 2110, 2726, 4120, 9112, 20120, 24750, 27512, 39332, 50832, 64140, 65668, 86092, 89190, 109500, 226710, 353160, 575902, 728692, 1122510, 3671262

Offset

1,1

Links

Table of n, a(n) for n=1..33.

Ray Ballinger, Proth Search Page.

Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for 300 < k < 600.

Y. Gallot, Proth.exe: Windows Program for Finding Large Primes.

Wilfrid Keller, List of primes k.2^n - 1 for k < 300.

Eric Weisstein's World of Mathematics, Proth Prime.

Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime.

Mathematica

Select[Range[1000], PrimeQ[463*2^# + 1] &]

Crossrefs

Sequence in context: A039720 A056097 A099431 * A261062 A076904 A354205

Adjacent sequences: A323198 A323199 A323200 * A323202 A323203 A323204

Keyword

nonn,more,hard,changed

Author

Robert Price, Jan 06 2019

Extensions

a(33) from Jeppe Stig Nielsen, Dec 18 2024

Status

approved