This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A010707 Period 2: repeat (3,9). 2
 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3, 9, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Continued fraction expansion of A176108. - R. J. Mathar, Mar 08 2012 LINKS Index entries for linear recurrences with constant coefficients, signature (0,1). FORMULA a(n) = -3*(-1)^n+6 = 9*(n mod 2)+3*[(n+1) mod 2]. - Paolo P. Lava, Oct 20 2006 G.f.: 3(1+3x)/((1-x)(1+x)). - R. J. Mathar, Nov 21 2011 MATHEMATICA PadRight[{}, 120, {3, 9}] (* Harvey P. Dale, Nov 07 2017 *) PROG (PARI) a(n)=3+n%2*6 \\ Charles R Greathouse IV, Dec 21 2011 CROSSREFS Sequence in context: A231828 A268580 A179802 * A097665 A284564 A170862 Adjacent sequences:  A010704 A010705 A010706 * A010708 A010709 A010710 KEYWORD nonn,easy AUTHOR STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 17 02:10 EDT 2019. Contains 325092 sequences. (Running on oeis4.)