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A244737
Numbers k such that (prime(k) mod 5) is odd.
3
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
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
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jul 05 2014
STATUS
approved