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 A246451 Nonnegative integers k satisfying sin(k)*cos(k+1) > 0. 3
 13, 16, 19, 22, 35, 38, 41, 44, 57, 60, 63, 66, 79, 82, 85, 88, 101, 104, 107, 110, 123, 126, 129, 132, 145, 148, 151, 154, 167, 170, 173, 176, 189, 192, 195, 198, 211, 214, 217, 220, 233, 236, 239, 242, 255, 258, 261, 264, 277, 280, 283, 286, 299, 302, 305 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Clark Kimberling, Table of n, a(n) for n = 1..1000 MATHEMATICA z = 200; Select[Range[0, z], Sin[#] Cos[# + 1] < 0 &]  (* A246450 *) Select[Range[0, z], Sin[#] Cos[# + 1] > 0 &]  (* A246451 *) CROSSREFS Cf. A246450 (complement of A246451), A246443. Sequence in context: A058225 A295744 A064805 * A295327 A179202 A159975 Adjacent sequences:  A246448 A246449 A246450 * A246452 A246453 A246454 KEYWORD nonn,easy AUTHOR Clark Kimberling, Aug 26 2014 STATUS approved

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Last modified January 28 00:32 EST 2020. Contains 331313 sequences. (Running on oeis4.)