A000484 - OEIS

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A000484

a(n) = round(cos(n)).

1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, 1, 0

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,1

LINKS

T. D. Noe, Table of n, a(n) for n = 0..1000

MAPLE

f := n->round(evalf(cos(n)));

MATHEMATICA

Array[ Round[ Cos[ # ] // N ]&, 90, 0 ]

CROSSREFS

Sequence in context: A016345 A016148 A016333 * A014978 A015947 A015590

Adjacent sequences: A000481 A000482 A000483 * A000485 A000486 A000487

KEYWORD

sign,easy

AUTHOR

N. J. A. Sloane

STATUS

approved