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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; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..7.
CROSSREFS
Sequence in context: A171474 A323520 A176548 * A033633 A242119 A308505
Adjacent sequences: A020622 A020623 A020624 * A020626 A020627 A020628
KEYWORD
nonn,fini,full
AUTHOR
David W. Wilson
STATUS
approved

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Last modified June 1 21:15 EDT 2024. Contains 373029 sequences. (Running on oeis4.)