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A020620
Smallest nonempty set S containing prime divisors of 8k+7 for each k in S.
0
3, 5, 11, 13, 17, 19, 23, 29, 31, 37, 41, 47, 53, 61, 67, 71, 83, 97, 101, 109, 163, 181, 191, 239, 263, 293, 307, 383, 431, 691, 821, 2111, 2351
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..33.
CROSSREFS
Sequence in context:
A270699
A260398
A065396
*
A136056
A059636
A087894
Adjacent sequences:
A020617
A020618
A020619
*
A020621
A020622
A020623
KEYWORD
nonn
,
fini
,
full
AUTHOR
David W. Wilson
STATUS
approved
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Last modified July 16 02:34 EDT 2024. Contains 374343 sequences. (Running on oeis4.)