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A195911 a(n) = ceiling(cot(n)). 4
1, 0, -7, 1, 0, -3, 2, 0, -2, 2, 0, -1, 3, 1, -1, 4, 1, 0, 7, 1, 0, 113, 1, 0, -7, 1, 0, -3, 2, 0, -2, 2, 0, -1, 3, 1, -1, 4, 1, 0, 7, 1, 0, 57, 1, 0, -8, 1, 0, -3, 2, 0, -2, 2, 0, -1, 3, 1, -1, 4, 1, 0, 6, 1, 0, 38, 1, 0, -8, 1, 0, -3, 2, 0, -2, 2, 0, -1, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Table[Ceiling[Cot[n]], {n, 100}] (* T. D. Noe, Mar 16 2012 *)

PROG

(PARI) a(n)=ceil(1/tan(n)) \\ Charles R Greathouse IV, Feb 07 2013

(MAGMA) [Ceiling(1/Tan(n)): n in [1..80]]; // Vincenzo Librandi, Feb 16 2013

CROSSREFS

Cf. A195910, A000503, A037448, A005657, A000493, A000480, A000494, A000484.

Sequence in context: A197037 A256778 A218620 * A231096 A240907 A179376

Adjacent sequences:  A195908 A195909 A195910 * A195912 A195913 A195914

KEYWORD

sign,easy

AUTHOR

Mohammad K. Azarian, Mar 15 2012

STATUS

approved

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Last modified October 14 04:44 EDT 2019. Contains 327995 sequences. (Running on oeis4.)