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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A199413 9*6^n+1. 1
10, 55, 325, 1945, 11665, 69985, 419905, 2519425, 15116545, 90699265, 544195585, 3265173505, 19591041025, 117546246145, 705277476865, 4231664861185, 25389989167105, 152339935002625, 914039610015745, 5484237660094465, 32905425960566785 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
FORMULA
a(n) = 6*a(n-1)-5.
a(n) = 7*a(n-1)-6*a(n-2).
G.f.: 5*(2-3*x)/((1-x)*(1-6*x)).
MATHEMATICA
NestList[6#-5&, 10, 20] (* or *) LinearRecurrence[{7, -6}, {10, 55}, 30] (* Harvey P. Dale, Sep 28 2012 *)
PROG
(Magma) [9*6^n+1: n in [0..30]];
CROSSREFS
Sequence in context: A357668 A316109 A188168 * A054629 A290359 A030114
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Nov 06 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 26 17:57 EST 2024. Contains 370352 sequences. (Running on oeis4.)