A113001 Smallest k, not occurring earlier, such that (2*k + n-th odd prime) is prime.

1, 3, 2, 4, 5, 6, 9, 7, 12, 8, 11, 10, 14, 13, 15, 19, 18, 17, 16, 20, 24, 22, 21, 26, 25, 23, 28, 27, 30, 32, 31, 37, 29, 39, 36, 33, 35, 42, 34, 45, 38, 40, 44, 43, 41, 48, 47, 52, 51, 49, 46, 53, 54, 55, 58, 57, 56, 60, 64, 50, 63, 62, 61, 59, 66, 65, 71, 70, 69, 67, 72, 68

Offset

1,2

Comments

Permutation of the natural numbers with fixed points A113005: a(A113005(n))=A113005(n);

inverse: A113004; A113006(n) = a(a(n));

A113002(n) = 2*a(n) + A065091(n).

Links

Table of n, a(n) for n=1..72.

Index entries for sequences that are permutations of the natural numbers

Crossrefs

Sequence in context: A357872 A216249 A113004 * A036812 A039906 A056011

Adjacent sequences: A112998 A112999 A113000 * A113002 A113003 A113004

Keyword

nonn

Author

Reinhard Zumkeller, Oct 10 2005

Status

approved