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!)
A191628 a(n) = floor((3^n)/(3*n - 2)). 3
3, 2, 3, 8, 18, 45, 115, 298, 787, 2108, 5714, 15630, 43089, 119574, 333695, 935798, 2635513, 7450394, 21132026, 60116972, 171481200, 490329056, 1405122072, 4034707664, 11606693280, 33445603004, 96526550442, 278985273840, 807416204292, 2339671955621 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
f[n_] := Floor[(3^n)/(3 n - 2)]
Table[f[n], {n, 1, 40}] (* A191628 *)
PROG
(PARI) a(n)=3^n\(3*n-2) \\ Charles R Greathouse IV, Jun 17 2011
(Maxima) A191628(n):=floor( 3^n/(3*n-2) )$ makelist(A191628(n), n, 1, 30); /* Martin Ettl, Oct 25 2012 */
CROSSREFS
Sequence in context: A143744 A095243 A049921 * A261999 A360701 A216829
KEYWORD
nonn,less,easy
AUTHOR
Clark Kimberling, Jun 09 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 March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)