The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A152893 Periodic sequence [3, 3, 0, 0, 4] of period 5. 1
 3, 3, 0, 0, 4, 3, 3, 0, 0, 4, 3, 3, 0, 0, 4, 3, 3, 0, 0, 4, 3, 3, 0, 0, 4, 3, 3, 0, 0, 4, 3, 3, 0, 0, 4, 3, 3, 0, 0, 4, 3, 3, 0, 0, 4, 3, 3, 0, 0, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Table of n, a(n) for n=0..49. Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,1). FORMULA a(n+5) = a(n) with a(0) = a(1) = 3, a(2) = a(3) = 0 and a(4) = 4. O.g.f: ((3+3*z+4*z^4)/(1-z^5)). a(n) = 2+(1/2+7/10*5^(1/2))*cos(2*n*Pi/5)+(-1/10*2^(1/2)*(5+5^(1/2))^(1/2))*sin(2*n*Pi/5)+(1/2-7/10*5^(1/2))*cos(4*n*Pi/5)+(-1/10*2^(1/2)*(5-5^(1/2))^(1/2))*sin(4*n*Pi/5). a(n) = (1/5)*{2*(n mod 5)-3*[(n+1) mod 5]+[(n+2) mod 5]+4*[(n+3) mod 5]+[(n+4) mod 5]}, with n>=0. [Paolo P. Lava, Dec 15 2008] a(n) = [(n-2)^3 -(n-2)^2] mod 5. [Gary Detlefs, Mar 20 2010] MATHEMATICA PadRight[{}, 120, {3, 3, 0, 0, 4}] (* Harvey P. Dale, Sep 17 2018 *) CROSSREFS Cf. A026056. Sequence in context: A170852 A245320 A330341 * A335682 A335681 A297978 Adjacent sequences: A152890 A152891 A152892 * A152894 A152895 A152896 KEYWORD easy,nonn AUTHOR Richard Choulet, Dec 14 2008 STATUS approved

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

Last modified November 28 08:40 EST 2023. Contains 367399 sequences. (Running on oeis4.)