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A268465
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Primes of the form m*prime(m) + (m + 1)*prime(m + 1) + (m + 2)*prime(m + 2).
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2
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23, 349, 1579, 4691, 5783, 7187, 9547, 11519, 15377, 45779, 52289, 353359, 361787, 384277, 510227, 678413, 710599, 1007861, 1218709, 1301617, 1484449, 1567567, 1839469, 2073989, 2264959, 2409163, 2438377, 2520779, 2735281, 2882653, 2998867, 3100271, 3211751
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OFFSET
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1,1
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COMMENTS
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LINKS
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PROG
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(Python)
from itertools import islice
from sympy import isprime, nextprime
def agen(): # generator of terms
m, p, q, r = 1, 2, 3, 5
while True:
t = m*p + (m+1)*q + (m+2)*r
if isprime(t): yield t
m, p, q, r = m+1, q, r, nextprime(r)
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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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