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A116581
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Primes of the form k^3-k-1.
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16
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5, 23, 59, 503, 719, 1319, 2729, 3359, 4079, 5813, 9239, 12143, 13799, 24359, 29759, 42839, 46619, 54833, 68879, 91079, 110543, 166319, 195053, 205319, 215939, 262079, 328439, 342929, 357839, 438899, 531359, 635969, 941093, 1124759, 1259603, 1367519, 1442783
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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PROG
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(Magma) [ a: n in [1..200] | IsPrime(a) where a is n^3-n-1 ]; // Vincenzo Librandi, Dec 07 2011
(Python)
from sympy import isprime
def aupton(terms):
k, alst = 2, []
while len(alst) < terms:
if isprime(k**3-k-1): alst.append(k**3-k-1)
k += 1
return alst
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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