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Search: id:A023214
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A023214 Numbers n such that n and 4n + 5 both prime. +0
1
2, 3, 17, 23, 47, 59, 83, 101, 107, 113, 149, 167, 191, 233, 251, 257, 281, 311, 401, 443, 449, 467, 503, 521, 569, 593, 617, 647, 653, 677, 761, 827, 839, 857, 863, 881, 941, 947, 971, 1013, 1031, 1049, 1109, 1163, 1181, 1277, 1301, 1307, 1319, 1361, 1409, 1433 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A045342 A045343 A019388 this_sequence A095688 A029876 A084445

Adjacent sequences: A023211 A023212 A023213 this_sequence A023215 A023216 A023217

KEYWORD

nonn

AUTHOR

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

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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