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A244736 Numbers k such that (prime(k) mod 5) is even. 3
1, 3, 4, 7, 8, 10, 12, 15, 17, 19, 22, 24, 25, 28, 29, 31, 33, 34, 35, 37, 39, 41, 45, 46, 49, 50, 52, 55, 57, 59, 63, 66, 68, 69, 70, 72, 73, 75, 77, 78, 80, 81, 85, 87, 88, 91, 92, 93, 95, 97, 101, 102, 104, 106, 107, 109, 111, 113, 114, 118, 120, 123, 127 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Complement of A244737.

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

MAPLE

A244736:=n->`if`(type(ithprime(n) mod 5, even), n, NULL): seq(A244736(n), n=1..150); # Wesley Ivan Hurt, Jul 06 2014

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 *)

Position[Mod[Prime[Range[130]], 5], _?EvenQ]//Flatten (* Harvey P. Dale, Jan 28 2019 *)

CROSSREFS

Cf. A039703, A244735, A244737.

Sequence in context: A184820 A189521 A285346 * A138971 A189750 A153144

Adjacent sequences:  A244733 A244734 A244735 * A244737 A244738 A244739

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jul 05 2014

STATUS

approved

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Last modified November 29 04:08 EST 2021. Contains 349416 sequences. (Running on oeis4.)