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A023205 Numbers n such that n and 2n + 5 both prime. +0
2
3, 7, 13, 19, 31, 37, 61, 67, 73, 79, 97, 103, 109, 139, 151, 163, 181, 229, 241, 271, 283, 307, 313, 367, 373, 409, 439, 457, 523, 541, 613, 643, 661, 709, 727, 733, 739, 769, 787, 811, 829, 859, 877, 937, 991, 997, 1039, 1063, 1069, 1087, 1117, 1123, 1153, 1171 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A023203 A086135 A023220 this_sequence A103521 A103966 A023237

Adjacent sequences: A023202 A023203 A023204 this_sequence A023206 A023207 A023208

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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