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A020581 Smallest nonempty set S containing prime divisors of 3k+1 for each k in S. +0
1
2, 5, 7, 11, 13, 17 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A057922 A113543 A004134 this_sequence A081259 A118751 A137519

Adjacent sequences: A020578 A020579 A020580 this_sequence A020582 A020583 A020584

KEYWORD

nonn,fini,full

AUTHOR

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

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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