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A020625 Smallest nonempty set S containing prime divisors of 9k+3 for each k in S. 0
2, 3, 5, 7, 11, 13, 17 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A084111 A171474 A176548 * A033633 A171049 A171053

Adjacent sequences:  A020622 A020623 A020624 * A020626 A020627 A020628

KEYWORD

nonn,fini,full

AUTHOR

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

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.