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A167420 2^n mod 14. 0
1, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8, 2, 4, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..99.

Index entries for linear recurrences with constant coefficients, signature (0,0,1).

FORMULA

G.f.: 1 + -2*x*(1+2*x+4*x^2) / ( (x-1)*(1+x+x^2) ). - R. J. Mathar, Jun 18 2019

MATHEMATICA

PowerMod[2, Range[0, 100], 14] (* Harvey P. Dale, Jul 25 2011 *)

PROG

(Sage) [power_mod(2, n, 14)for n in range(0, 100)] #

(PARI) a(n)=lift(Mod(2, 14)^n) \\ Charles R Greathouse IV, Mar 22 2016

CROSSREFS

Sequence in context: A215452 A175131 A033921 * A195711 A200610 A076232

Adjacent sequences:  A167417 A167418 A167419 * A167421 A167422 A167423

KEYWORD

nonn,easy

AUTHOR

Zerinvary Lajos, Nov 03 2009

STATUS

approved

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Last modified June 22 14:15 EDT 2021. Contains 345380 sequences. (Running on oeis4.)