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A020580 Smallest nonempty set S containing prime divisors of 2k+9 for each k in S. 0
5, 19, 43, 47, 103 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..5.

CROSSREFS

Sequence in context: A098319 A022267 A094465 * A172043 A146616 A146395

Adjacent sequences:  A020577 A020578 A020579 * A020581 A020582 A020583

KEYWORD

nonn,fini,full

AUTHOR

David W. Wilson

STATUS

approved

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Last modified November 23 05:04 EST 2014. Contains 249839 sequences.