A028861 a(n) = floor( tan(Fibonacci(n)) ).

0, 1, 1, -3, -1, -4, -7, 0, -2, -1, -46, 1, -1, 0, 0, 0, 0, 1, -25, -1, 2, 0, -4, -1, 2, 0, -4, -1, 2, 0, -6, -2, 1, 0, 1, 1, -3, -1, -3, -3, 0, -1, 0, -1, -1, -1, -1, -2, -6, 1, -1, 0, -1, 0, -1, -1, -1, -1, -1, -3, 3, 0, 6, 42, -1, 4, 2, -1, 0, -1, 0, 0, 2, -7, -1, 9, 2, -1, 0, 0

Offset

0,4

Links

Table of n, a(n) for n=0..79.

Mathematica

Floor[Tan[Fibonacci[Range[0, 80]]]] (* Harvey P. Dale, Aug 10 2013 *)

Crossrefs

Sequence in context: A170839 A049918 A357182 * A081521 A213224 A210218

Adjacent sequences: A028858 A028859 A028860 * A028862 A028863 A028864

Keyword

sign

Author

N. J. A. Sloane.

Status

approved