login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A199312 (9*5^n+1)/2. 1
5, 23, 113, 563, 2813, 14063, 70313, 351563, 1757813, 8789063, 43945313, 219726563, 1098632813, 5493164063, 27465820313, 137329101563, 686645507813, 3433227539063, 17166137695313, 85830688476563, 429153442382813, 2145767211914063 (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 (6,-5).

FORMULA

a(n) = 5*a(n-1)-2.

a(n) = 6*a(n-1)-5*a(n-2).

G.f.: (5-7*x)/((1-x)*(1-5*x)).

PROG

(MAGMA) [(9*5^n+1)/2: n in [0..30]];

CROSSREFS

Sequence in context: A017975 A178873 A186652 * A320326 A299589 A113284

Adjacent sequences:  A199309 A199310 A199311 * A199313 A199314 A199315

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 | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 29 05:25 EST 2020. Contains 332353 sequences. (Running on oeis4.)