A089884 a(n) = Max(Min(k: m+prime(n)*k is prime): 1<=m<prime(n)).

1, 2, 3, 4, 6, 7, 6, 10, 10, 10, 18, 11, 14, 10, 20, 12, 12, 24, 15, 18, 24, 16, 20, 22, 15, 21, 19, 22, 21, 19, 29, 23, 28, 34, 23, 29, 22, 27, 23, 27, 30, 26, 25, 36, 28, 24, 30, 21, 28, 40, 25, 40, 24, 27, 24, 34, 29, 27, 28, 29, 46, 29, 38, 34, 37, 38, 31, 51, 39, 46, 37

Offset

1,2

Links

Table of n, a(n) for n=1..71.

Eric Weisstein's World of Mathematics, Dirichlet's Theorem

Index entries for sequences related to primes in arithmetic progressions

Example

n=4, prime(4)=7, a(4)=4 as: 1->8->15->22->29, 2->9->16->23,
3->10->17, 4->11, 5->12->19, 6->13.

Crossrefs

Sequence in context: A072659 A072766 A071652 * A172312 A086163 A175059

Adjacent sequences: A089881 A089882 A089883 * A089885 A089886 A089887

Keyword

nonn

Author

Reinhard Zumkeller, Jan 10 2004

Status

approved