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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A133671 a(n) = a(n-1) - 64*a(n-2), a(0)=1, a(1)=8. 1
 1, 8, -56, -568, 3016, 39368, -153656, -2673208, 7160776, 178246088, -280043576, -11687793208, 6234995656, 754253760968, 355214038984, -47917026662968, -70650725157944, 2996038981272008, 7517685391380424, -184228809410028088 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA G.f.: (1+7*x)/(1-x+64*x^2). a(n) = Sum_{k=0..n} A133607(n,k)*8^k. - Philippe Deléham, Dec 30 2007 a(n) = -(1/34)*i*sqrt(255)*(1/2 + (1/2)*i*sqrt(255))^n + (1/2)*(1/2 + (1/2)*i*sqrt(255))^n + (1/34)*i*sqrt(255)*(1/2 - (1/2)*i*sqrt(255))^n + (1/2)*(1/2 - (1/2)*i*sqrt(255))^n, with n>=0 and i=sqrt(-1). - Paolo P. Lava, Aug 28 2008 CROSSREFS Cf. A133607. Sequence in context: A209665 A208944 A209072 * A326239 A154411 A105850 Adjacent sequences: A133668 A133669 A133670 * A133672 A133673 A133674 KEYWORD easy,sign AUTHOR Philippe Deléham, Dec 29 2007 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 March 26 17:14 EDT 2023. Contains 361551 sequences. (Running on oeis4.)