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A051698 Closest prime to n that is different from n (break ties by taking the smaller prime). +0
1
2, 2, 3, 2, 3, 3, 5, 5, 7, 7, 11, 13, 11, 11, 13, 13, 17, 19, 17, 17, 19, 19, 23, 19, 23, 23, 23, 29, 29, 31, 29, 29, 31, 31, 31, 37, 37, 41, 37, 37, 41, 43, 41, 41, 43, 43, 47, 43, 47, 47, 47, 53, 53, 47, 53, 53, 53, 59, 59, 61, 59, 59, 61, 61, 61, 67, 67, 71, 67, 67, 71, 73 (list; graph; listen)
OFFSET

0,1

EXAMPLE

Closest primes to 0,1,2,3,4 are 2,2,3,2,3.

CROSSREFS

Related sequences: A023186-A023188, A046929-A046931, A051650, A051652, A051697-A051702, A051728-A051730.

Sequence in context: A029204 A057334 A048475 this_sequence A046773 A101037 A002199

Adjacent sequences: A051695 A051696 A051697 this_sequence A051699 A051700 A051701

KEYWORD

nonn,easy

AUTHOR

njas

EXTENSIONS

More terms from James A. Sellers (sellersj(AT)math.psu.edu)

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Last modified September 7 15:23 EDT 2008. Contains 143483 sequences.


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