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A049510
Numbers k such that prime(k) == 9 (mod 10).
5
8, 10, 17, 22, 24, 29, 34, 35, 41, 46, 50, 52, 57, 70, 72, 75, 77, 80, 81, 85, 87, 92, 95, 97, 104, 109, 114, 120, 127, 128, 131, 136, 140, 145, 146, 149, 157, 158, 169, 171, 175, 176, 180, 186, 189, 201, 204, 205, 207, 209, 215, 222, 223, 226, 228, 232, 237, 239
OFFSET
1,1
COMMENTS
The asymptotic density of this sequence is 1/4 (by Dirichlet's theorem). - Amiram Eldar, Mar 01 2021
FORMULA
a(n) = A000720(A030433(n)). - Ray Chandler, Nov 07 2006
MATHEMATICA
Select[Range[240], Mod[Prime[ # ], 10] == 9 &] (* Ray Chandler, Nov 07 2006 *)
CROSSREFS
KEYWORD
nonn
EXTENSIONS
Extended by Ray Chandler, Nov 07 2006
STATUS
approved