The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A083585 (8*5^n - 5*2^n)/3. 2
1, 10, 60, 320, 1640, 8280, 41560, 208120, 1041240, 5207480, 26039960, 130204920, 651034840, 3255194680, 16276014360, 81380153720, 406900932440, 2034504989880, 10172525604760, 50862629334520, 254313149294040 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Binomial transform of A083854.
LINKS
FORMULA
a(n) = (8*5^n-5*2^n)/3.
G.f. (1+3x)/((1-2x)(1-5x)).
E.g.f. (8*exp(5x) - 5*exp(2x))/3.
MATHEMATICA
LinearRecurrence[{7, -10}, {1, 10}, 20] (* T. D. Noe, Aug 06 2013 *)
CROSSREFS
Sequence in context: A112502 A293081 A292489 * A250575 A155633 A368525
KEYWORD
easy,nonn
AUTHOR
Paul Barry, May 01 2003
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 May 30 18:38 EDT 2024. Contains 372971 sequences. (Running on oeis4.)