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Search: id:A153222
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A153222 Numbers n such that n and 6n+7 are both prime +0
1
2, 11, 17, 29, 31, 3, 61, 67, 71, 89, 101, 109, 127, 137, 167, 181, 191, 199, 229, 241, 257, 269, 277, 281, 311, 331, 337, 347, 359, 379, 389, 397, 419, 431, 457, 491, 499, 509, 541, 571, 577, 587 (list; graph; listen)
OFFSET

1,1
EXAMPLE

For n=2, 6n+7=19; n=587, 6n+7=3529

CROSSREFS

Cf. A153218, A153219

Sequence in context: A060427 A108894 A066794 this_sequence A087379 A019364 A164368

Adjacent sequences: A153219 A153220 A153221 this_sequence A153223 A153224 A153225

KEYWORD

nonn

AUTHOR

Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Dec 21 2008

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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