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!)
A135292 a(n) = 5^n * 4^(n^2). 2
1, 20, 6400, 32768000, 2684354560000, 3518437208883200000, 73786976294838206464000000, 24758800785707605497982484480000000, 132922799578491587290380706028034457600000000 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Hankel transform of A130976 .
LINKS
FORMULA
a(n)=5^n*4^(n^2)=A000351(n)*A060757(n).
MATHEMATICA
Table[5^n*4^(n^2), {n, 0, 10}] (* G. C. Greubel, Oct 09 2016 *)
PROG
(PARI) a(n)=5^n*4^(n^2) \\ Charles R Greathouse IV, Oct 09 2016
CROSSREFS
Sequence in context: A088852 A123379 A175015 * A222721 A223051 A222744
KEYWORD
nonn,easy
AUTHOR
Philippe Deléham, Dec 04 2007
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 08:49 EDT 2024. Contains 371268 sequences. (Running on oeis4.)