login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A199317 2*6^n+1. 1
3, 13, 73, 433, 2593, 15553, 93313, 559873, 3359233, 20155393, 120932353, 725594113, 4353564673, 26121388033, 156728328193, 940369969153, 5642219814913, 33853318889473, 203119913336833, 1218719480020993, 7312316880125953, 43873901280755713 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index to sequences with linear recurrences with constant coefficients, signature (7,-6).

FORMULA

a(n) = 6*a(n-1)-5.

a(n) = 7*a(n-1)-6*a(n-2).

G.f.: (3-8*x)/((1-x)*(1-6*x)).

PROG

(MAGMA) [2*6^n+1: n in [0..30]];

CROSSREFS

Sequence in context: A067764 A193930 A063512 * A205776 A132846 A193931

Adjacent sequences:  A199314 A199315 A199316 * A199318 A199319 A199320

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Nov 05 2011

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified November 29 03:09 EST 2014. Contains 250479 sequences.