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A246302
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Numbers k such that cos(k) < cos(k+1) < cos(k+2) < cos(k+3) > cos(k+4).
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4
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3, 10, 16, 22, 28, 35, 41, 47, 54, 60, 66, 72, 79, 85, 91, 98, 104, 110, 116, 123, 129, 135, 142, 148, 154, 160, 167, 173, 179, 185, 192, 198, 204, 211, 217, 223, 229, 236, 242, 248, 255, 261, 267, 273, 280, 286, 292, 299, 305, 311, 317, 324, 330, 336, 343
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OFFSET
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1,1
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COMMENTS
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LINKS
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MATHEMATICA
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z = 520; f[x_] := f[x] = Cos[x]; t = Range[0, z];
Select[t, f[#] > f[# + 1] &] (* A026311 *)
Select[t, f[#] < f[# + 1] > f[# + 2] &] (* A246300 *)
Select[t, f[#] < f[# + 1] < f[# + 2] > f[# + 3] &] (* A246301 *)
Select[t, f[#] < f[# + 1] < f[# + 2] < f[# + 3] > f[# + 4] &] (* A246302 *)
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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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