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A020626 Smallest nonempty set S containing prime divisors of 9k+4 for each k in S. +0
1
5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 79, 83, 103, 107, 109, 127, 137, 157, 163, 173, 191, 197, 211, 223, 229, 233, 283, 337, 367, 373, 409, 421, 479, 607, 643, 691, 751, 863, 887, 941, 967, 1019, 1109, 1181, 1237, 1307, 1471, 1543, 1723 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Adjacent sequences: A020623 A020624 A020625 this_sequence A020627 A020628 A020629

Sequence in context: A070191 A135775 A066047 this_sequence A136207 A020624 A020621

KEYWORD

nonn,fini

AUTHOR

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

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.


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