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A020608 Smallest nonempty set S containing prime divisors of 7k+3 for each k in S. 1
2, 5, 17, 19, 43, 61 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

CROSSREFS

Sequence in context: A205511 A215276 A095287 * A075612 A156010 A215273

Adjacent sequences:  A020605 A020606 A020607 * A020609 A020610 A020611

KEYWORD

nonn,fini,full

AUTHOR

David W. Wilson

STATUS

approved

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Last modified May 24 14:36 EDT 2022. Contains 354037 sequences. (Running on oeis4.)