A020613 Smallest nonempty set S containing prime divisors of 7k+9 for each k in S.

2, 5, 11, 17, 23, 31, 43, 113

Offset

1,1

Links

Table of n, a(n) for n=1..8.

Crossrefs

Sequence in context: A103203 A105875 A031368 * A135478 A019381 A113426

Adjacent sequences: A020610 A020611 A020612 * A020614 A020615 A020616

Keyword

nonn,fini,full

Author

David W. Wilson

Status

approved