A020580 Smallest nonempty set S containing prime divisors of 2k+9 for each k in S.

5, 19, 43, 47, 103

Offset

1,1

Links

Table of n, a(n) for n=1..5.

Crossrefs

Sequence in context: A098319 A022267 A094465 * A172043 A146616 A146395

Adjacent sequences: A020577 A020578 A020579 * A020581 A020582 A020583

Keyword

nonn,fini,full

Author

David W. Wilson

Status

approved