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A020581
Smallest nonempty set S containing prime divisors of 3k+1 for each k in S.
1
2, 5, 7, 11, 13, 17
(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: A322969 A229470 A157829 * A081259 A177512 A118751
Adjacent sequences: A020578 A020579 A020580 * A020582 A020583 A020584
KEYWORD
nonn,fini,full
AUTHOR
David W. Wilson
STATUS
approved

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Last modified November 24 01:51 EST 2024. Contains 378052 sequences.
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