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A244741
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Numbers k such that (prime(k) mod 5) == 2 (mod 3).
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4
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1, 4, 7, 12, 15, 19, 25, 28, 31, 33, 37, 39, 45, 49, 55, 59, 63, 66, 68, 69, 73, 78, 88, 91, 93, 101, 102, 106, 107, 111, 113, 118, 123, 129, 134, 138, 139, 144, 148, 151, 154, 155, 159, 161, 163, 165, 168, 181, 184, 187, 195, 199, 203, 206, 211, 214, 217
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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n ... prime(n) mod 5 mod 3
1 ..... 2 ..... 2 ... 2
2 ..... 3 ..... 3 ... 0
3 ..... 5 ..... 0 ... 0
4 ..... 7 ..... 2 ... 2
5 ..... 11 .... 1 ... 1
6 ..... 13 .... 3 ... 0
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MAPLE
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MATHEMATICA
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z = 300; u = Mod[Table[Mod[Prime[n], 5], {n, 1, z}], 3] (* A244738 *)
v1 = Flatten[Position[u, 0]] (* A244739 *)
v2 = Flatten[Position[u, 1]] (* A024707 *)
v3 = Flatten[Position[u, 2]] (* A244741 *)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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