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a(n) = n-th nonnegative integer k satisfying sin(k) < cos(k) < sin(k+1).
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%I #4 Mar 30 2012 18:56:06

%S 7,13,32,38,51,57,76,82,95,101,120,126,139,145,164,170,189,208,214,

%T 233,252,258,277,296,302,321,340,346,365,371,384,390,409,415,428,434,

%U 453,459,472,478,497,503,516,522,541,547,566,585

%N a(n) = n-th nonnegative integer k satisfying sin(k) < cos(k) < sin(k+1).

%K nonn

%O 1,1

%A _Clark Kimberling_