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!)
A017202 a(n) = (9*n + 3)^6. 1
729, 2985984, 85766121, 729000000, 3518743761, 12230590464, 34296447249, 82653950016, 177978515625, 351298031616, 646990183449, 1126162419264, 1870414552161, 2985984000000, 4608273662721 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
FORMULA
G.f.: -729*(1 + 4089*x + 88998*x^2 + 262438*x^3 + 154113*x^4 + 15177*x^5 + 64*x^6)/(x-1)^7. - R. J. Mathar, Jul 14 2016
MATHEMATICA
(9*Range[0, 30]+3)^6 (* or *) LinearRecurrence[{7, -21, 35, -35, 21, -7, 1}, {729, 2985984, 85766121, 729000000, 3518743761, 12230590464, 34296447249}, 30] (* Harvey P. Dale, Nov 24 2018 *)
PROG
(Magma) [(9*n+3)^6: n in [0..20]]; // Vincenzo Librandi, Jul 23 2011
CROSSREFS
Sequence in context: A272066 A017022 A017106 * A013791 A017310 A017430
KEYWORD
nonn,easy
AUTHOR
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 29 09:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)