id:A026314 - OEIS Search Results

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a(n) = n-th nonnegative integer k satisfying |cos(k)*cos(k+2)| > (cos(k+1))^2.

+0
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0, 1, 4, 7, 10, 13, 16, 19, 20, 22, 23, 26, 29, 32, 35, 38, 41, 42, 44, 45, 48, 51, 54, 57, 60, 63, 64, 66, 67, 70, 73, 76, 79, 82, 85, 86, 88, 89, 92, 95, 98, 101, 104, 107, 108, 110, 111, 114, 117, 120, 123, 126, 129, 130, 132, 133, 136 (list; graph; listen)

	OFFSET	`1,3`
	CROSSREFS	`Sequence in context: A090384 A055054 A075990 this_sequence A070300 A112335 A145289` `Adjacent sequences: A026311 A026312 A026313 this_sequence A026315 A026316 A026317`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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