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A045718
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Nearest neighbors of primes.
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10
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1, 2, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 32, 36, 38, 40, 42, 44, 46, 48, 52, 54, 58, 60, 62, 66, 68, 70, 72, 74, 78, 80, 82, 84, 88, 90, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 126, 128, 130, 132, 136, 138, 140, 148, 150, 152, 156, 158, 162
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refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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LINKS
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EXAMPLE
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p=7 contributes 6 and 8 to the list.
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MATHEMATICA
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Union[ Table[ Prime[ i ]-1, {i, 1, 100} ]~Join~Table[ Prime[ i ]+1, {i, 1, 100} ] ]
Union[Flatten[Table[n+{1, -1}, {n, Prime[Range[50]]}]]] (* Harvey P. Dale, Oct 18 2015 *)
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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