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A323115
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Numbers k such that 429*2^k+1 is prime.
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1
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1, 3, 5, 6, 9, 11, 21, 27, 37, 54, 55, 113, 147, 181, 185, 222, 313, 317, 695, 1003, 1270, 1385, 1483, 1519, 1567, 2057, 2550, 4014, 4467, 5773, 6078, 6103, 7951, 9958, 11317, 11807, 12974, 14046, 14401, 14585, 16686, 17433, 37525, 62486, 65195, 76726, 85881
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OFFSET
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1,2
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LINKS
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MAPLE
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select(k->isprime(429*2^k+1), [$1..1000]); # Muniru A Asiru, Jan 05 2019
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MATHEMATICA
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Select[Range[1000], PrimeQ[429*2^# + 1] &]
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PROG
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(Python)
from sympy.ntheory.primetest import isprime
for n in range(1, 1000):
if isprime(429*2**n+1):
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CROSSREFS
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KEYWORD
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nonn,hard
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AUTHOR
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STATUS
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approved
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