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A020607 Smallest nonempty set S containing prime divisors of 7k+1 for each k in S. +0
1
2, 3, 5, 11, 13, 23 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A089194 A050229 A053184 this_sequence A128425 A036960 A133783

Adjacent sequences: A020604 A020605 A020606 this_sequence A020608 A020609 A020610

KEYWORD

nonn,fini,full

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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