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A321444 Expansion of Product_{0 < i < j} (1 - x^(i^2 + j^2)). 2

%I #8 Nov 10 2018 10:16:00

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

%T 3,1,-1,1,0,-1,1,0,0,3,-3,-2,2,-1,-1,2,3,-1,-1,-1,0,1,-4,0,4,0,-6,4,1,

%U -6,3,1,0,2,-4,-2,6,-4,-5,9,-1,-5,2,-1,-2,0,-3,2,11

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

%F G.f.: Product_{k>0} (1 - x^k)^A025441(k).

%Y Cf. A025441, A319734, A321436.

%K sign

%O 0,31

%A _Seiichi Manyama_, Nov 09 2018

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Last modified March 19 06:19 EDT 2024. Contains 370953 sequences. (Running on oeis4.)