This site is supported by donations to The OEIS Foundation.

 Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS". Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A199555 7*8^n+1. 2
 8, 57, 449, 3585, 28673, 229377, 1835009, 14680065, 117440513, 939524097, 7516192769, 60129542145, 481036337153, 3848290697217, 30786325577729, 246290604621825, 1970324836974593, 15762598695796737, 126100789566373889 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (9,-8). FORMULA a(n) = 8*a(n-1)-7. a(n) = 9*a(n-1)-8*a(n-2). G.f.: (8-15*x)/((1-x)*(1-8*x)). PROG (MAGMA) [7*8^n+1: n in [0..30]]; CROSSREFS Sequence in context: A181246 A281355 A281912 * A241594 A241595 A208596 Adjacent sequences:  A199552 A199553 A199554 * A199556 A199557 A199558 KEYWORD nonn,easy AUTHOR Vincenzo Librandi, Nov 08 2011 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.