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!)
A022261 Gaussian binomial coefficients [ n,10 ] for q = 9. 1
1, 3922632451, 13848340811466703906, 48352505889707776105242586606, 168620463706718874134703442098874261321, 587953159580355890974683988909617412559591458771, 2050069762911386221695293524269464063566943065726695501256 (list; graph; refs; listen; history; text; internal format)
OFFSET
10,2
REFERENCES
F. J. MacWilliams and N. J. A. Sloane, The Theory of Error-Correcting Codes, Elsevier-North Holland, 1978, p. 698.
LINKS
FORMULA
a(n) = Product_{i=1..10} (9^(n-i+1)-1)/(9^i-1), by definition. - Vincenzo Librandi, Aug 05 2016
MATHEMATICA
Table[QBinomial[n, 10, 9], {n, 10, 20}] (* Vincenzo Librandi, Aug 05 2016 *)
PROG
(Sage) [gaussian_binomial(n, 10, 9) for n in range(10, 17)] # Zerinvary Lajos, May 27 2009
(Magma) r:=10; q:=9; [&*[(1-q^(n-i+1))/(1-q^i): i in [1..r]]: n in [r..20]]; // Vincenzo Librandi, Aug 05 2016
CROSSREFS
Sequence in context: A233599 A159463 A034615 * A183801 A034647 A234385
KEYWORD
nonn
AUTHOR
EXTENSIONS
Offset changed by Vincenzo Librandi, Aug 05 2016
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 April 19 07:26 EDT 2024. Contains 371782 sequences. (Running on oeis4.)