A244737 Numbers k such that (prime(k) mod 5) is odd.

2, 5, 6, 9, 11, 13, 14, 16, 18, 20, 21, 23, 26, 27, 30, 32, 36, 38, 40, 42, 43, 44, 47, 48, 51, 53, 54, 56, 58, 60, 61, 62, 64, 65, 67, 71, 74, 76, 79, 82, 83, 84, 86, 89, 90, 94, 96, 98, 99, 100, 103, 105, 108, 110, 112, 115, 116, 117, 119, 121, 122, 124

Offset

1,1

Comments

Complement of A244736.

Links

Clark Kimberling, Table of n, a(n) for n = 1..1000

Example

k    prime(k)  mod 5  mod 2
1       2        2      0
2       3        3      1
3       5        0      0
4       7        2      0
5      11        1      1
6      13        3      1

Mathematica

z = 300; u = Mod[Table[Mod[Prime[n], 5], {n, 1, z}], 2] (* A244735 *)
Flatten[Position[u, 0]]  (* A244736 *)
Flatten[Position[u, 1]]  (* A244737 *)

Crossrefs

Cf. A039703, A244735, A244736.

Sequence in context: A138970 A168550 A355431 * A285347 A187836 A046160

Adjacent sequences: A244734 A244735 A244736 * A244738 A244739 A244740

Keyword

nonn,easy

Author

Clark Kimberling, Jul 05 2014

Status

approved