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Old 2008-12-03, 20:26   #1
davar55's Avatar
May 2004
New York City

102138 Posts
Default A Prime Sequence

Call a prime p "d-nice" if there is another prime of the form ap +/- b,
with 1 <= a,b <= d.

What are the smallest primes that are NOT d-nice,
for d = 1,2,3,4,5 (etc)?
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