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Search: id:A023231
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A023231 Numbers n such that n and 8n + 7 both prime. +0
1
2, 3, 5, 23, 29, 47, 53, 59, 89, 107, 113, 137, 179, 197, 227, 233, 257, 263, 293, 317, 359, 389, 419, 509, 557, 587, 593, 599, 617, 653, 659, 683, 839, 857, 863, 887, 947, 977, 1013, 1097, 1103, 1163, 1193, 1217, 1223, 1229, 1259, 1277, 1283, 1307, 1319, 1409 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A041195 A042141 A122004 this_sequence A034470 A138170 A105885

Adjacent sequences: A023228 A023229 A023230 this_sequence A023232 A023233 A023234

KEYWORD

nonn

AUTHOR

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

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Last modified August 29 14:50 EDT 2008. Contains 143238 sequences.


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