A132401 - OEIS

A132401

Period 8: repeat 0, 0, 1, 1, 2, -1, -1, -2.

0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2, -1, -1, -2, 0, 0, 1, 1, 2

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OFFSET

0,5

LINKS

Table of n, a(n) for n=0..108.

Index entries for linear recurrences with constant coefficients, signature (-1,-1,-1,-1,-1,-1,-1).

MATHEMATICA

PadRight[{}, 120, {0, 0, 1, 1, 2, -1, -1, -2}] (* or *) LinearRecurrence[{-1, -1, -1, -1, -1, -1, -1}, {0, 0, 1, 1, 2, -1, -1}, 120] (* Harvey P. Dale, Oct 26 2025 *)

PROG

(PARI) a(n)=[0, 0, 1, 1, 2, -1, -1, -2][n%8+1] \\ Charles R Greathouse IV, Jul 13 2016

CROSSREFS

Cf. A132367.

Sequence in context: A114781 A083890 A000989 * A104273 A051778 A390078

Adjacent sequences: A132398 A132399 A132400 * A132402 A132403 A132404

KEYWORD

sign,easy

AUTHOR

Paul Curtz, Nov 12 2007

STATUS

approved