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A020587
Smallest nonempty set S containing prime divisors of 4k+1 for each k in S.
2
3, 5, 7, 11, 13, 19, 29, 53, 71
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..9.
CROSSREFS
Sequence in context:
A212375
A040993
A078425
*
A249077
A126960
A119753
Adjacent sequences:
A020584
A020585
A020586
*
A020588
A020589
A020590
KEYWORD
nonn
,
fini
,
full
AUTHOR
David W. Wilson
STATUS
approved
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Last modified August 18 09:22 EDT 2024. Contains 375264 sequences. (Running on oeis4.)