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!)
A321447 Expansion of Product_{0 < i < j < k} (1 - x^(i^2 + j^2 + k^2)). 2

%I #7 Nov 10 2018 10:16:17

%S 1,0,0,0,0,0,0,0,0,0,0,0,0,0,-1,0,0,0,0,0,0,-1,0,0,0,0,-1,0,0,-1,-1,0,

%T 0,0,0,0,0,0,-1,0,1,-1,-1,1,1,-1,-1,1,0,0,0,1,1,-1,-1,2,2,0,0,2,1,-1,

%U -1,2,2,-1,0,4,3,-3,0,4,2,0,0,3,3,-2,-2,4,4,-3,0,7

%N Expansion of Product_{0 < i < j < k} (1 - x^(i^2 + j^2 + k^2)).

%F G.f.: Product_{k>0} (1 - x^k)^A025442(k).

%Y Cf. A025442, A320332, A321448.

%K sign

%O 0,56

%A _Seiichi Manyama_, Nov 09 2018

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 02:04 EDT 2024. Contains 371782 sequences. (Running on oeis4.)