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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A177095 9^n - 8. 3
 1, 73, 721, 6553, 59041, 531433, 4782961, 43046713, 387420481, 3486784393, 31381059601, 282429536473, 2541865828321, 22876792454953, 205891132094641, 1853020188851833, 16677181699666561, 150094635296999113 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 Index entries for linear recurrences with constant coefficients, signature (10,-9). FORMULA G.f.: x*(1 + 63*x)/(1 - 10*x + 9*x^2). - Vincenzo Librandi, Feb 06 2013 a(n) = 10*a(n-1) - 9*a(n-2) for n>2, a(1)=1, a(2)=73. - Vincenzo Librandi, Feb 06 2013 MATHEMATICA CoefficientList[Series[(1 + 63 x)/(1 - 10 x + 9 x^2), {x, 0, 30}], x] (* Vincenzo Librandi, Feb 06 2013 *) LinearRecurrence[{10, -9}, {1, 73}, 20] (* Harvey P. Dale, May 22 2014 *) PROG (Magma) [9^n-8: n in [1..20]]; CROSSREFS Equals A001019(n)-8. Sequence in context: A210383 A142675 A167187 * A321422 A133753 A177514 Adjacent sequences: A177092 A177093 A177094 * A177096 A177097 A177098 KEYWORD nonn,easy AUTHOR Vincenzo Librandi, Nov 15 2010 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 April 17 13:58 EDT 2024. Contains 371764 sequences. (Running on oeis4.)