A020632 Smallest nonempty set S containing prime divisors of 10k+1 for each k in S.

3, 7, 11, 13, 17, 19, 23, 29, 31, 37, 43, 47, 53, 59, 61, 71, 73, 79, 83, 97, 107, 113, 131, 139, 157, 163, 191, 197, 233, 277, 311, 383, 431, 479, 971, 1277, 1571, 1597, 5237, 15971

Offset

1,1

Links

Table of n, a(n) for n=1..40.

Crossrefs

Sequence in context: A004139 A249373 A180346 * A020596 A020600 A020598

Adjacent sequences: A020629 A020630 A020631 * A020633 A020634 A020635

Keyword

nonn,fini,full

Author

David W. Wilson

Status

approved