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A020589 Smallest nonempty set S containing prime divisors of 4k+3 for each k in S. 1
5, 7, 11, 13, 17, 19, 23, 29, 31, 41, 47, 59, 61, 71, 73, 79, 127, 137, 167, 191, 239 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..21.

CROSSREFS

Sequence in context: A020602 A020617 A299760 * A216523 A230227 A101635

Adjacent sequences:  A020586 A020587 A020588 * A020590 A020591 A020592

KEYWORD

nonn,fini,full

AUTHOR

David W. Wilson

STATUS

approved

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Last modified May 7 22:52 EDT 2021. Contains 343652 sequences. (Running on oeis4.)