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 A195910 a(n) = ceiling(tan(n)). 5
 0, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -225, 0, 1, 8, 0, 1, 4, -1, 1, 3, -1, 1, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -75, 0, 1, 8, 0, 1, 4, -1, 1, 3, -1, 1, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -45, 0, 1, 9, 0, 1, 4, -1, 1, 3, -1, 1, 2, -2, 0, 2, -3, 0, 1, -5, 0, 1, -32 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 MATHEMATICA Table[Ceiling[Tan[n]], {n, 0, 100}] (* T. D. Noe, Mar 16 2012 *) PROG (MAGMA) [Ceiling(Tan(n)): n in [0..80]]; // Vincenzo Librandi, Feb 15 2013 CROSSREFS Cf. A000503, A037448, A195911. Sequence in context: A229502 A141661 A278521 * A240590 A080769 A143539 Adjacent sequences:  A195907 A195908 A195909 * A195911 A195912 A195913 KEYWORD sign,easy AUTHOR Mohammad K. Azarian, Mar 15 2012 STATUS approved

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Last modified September 20 10:10 EDT 2019. Contains 327229 sequences. (Running on oeis4.)