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A049233 p_k + 2 is square-free, where p_k is the k-th prime. +0
2
3, 5, 11, 13, 17, 19, 29, 31, 37, 41, 53, 59, 67, 71, 83, 89, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 157, 163, 179, 181, 191, 193, 197, 199, 211, 227, 229, 233, 239, 251, 257, 263, 269, 271, 281, 283, 293, 307, 311, 317, 337, 347, 353, 379, 383, 389 (list; graph; listen)
OFFSET

1,1

FORMULA

Abs[ mu[ Prime[ k ]+2 ]=1

CROSSREFS

Sequence in context: A087894 A059352 A059309 this_sequence A045402 A059634 A059315

Adjacent sequences: A049230 A049231 A049232 this_sequence A049234 A049235 A049236

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu)

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.


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