A195910 a(n) = ceiling(tan(n)).

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

Offset: 0

Author

Mohammad K. Azarian, Mar 15 2012

Keywords

• sign
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Crossrefs

Cf. A000503, A037448, A195911.

Programs

Magma

[Ceiling(Tan(n)): n in [0..80]]; // Vincenzo Librandi, Feb 15 2013

Mathematica

Table[Ceiling[Tan[n]], {n, 0, 100}] (* T. D. Noe, Mar 16 2012 *)