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A020580
Smallest nonempty set S containing prime divisors of 2k+9 for each k in S.
0
5, 19, 43, 47, 103
OFFSET
1,1
CROSSREFS
Sequence in context: A098319 A022267 A094465 * A172043 A146616 A146395
KEYWORD
nonn,fini,full
STATUS
approved