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%I #7 Jan 03 2021 21:14:46
%S 1,1,0,0,0,1,1,0,0,1,1,0,0,1,2,1,0,0,1,1,0,0,1,1,0,0,0,1,1
%N Expansion of Product_{i=0..m-1} (1 + x^(4*i+1)) for m = 4.
%t CoefficientList[Series[Product[1+x^(4i+1),{i,0,3}],{x,0,30}],x] (* _Harvey P. Dale_, Jul 11 2019 *)
%Y Cf. A169975, A170966-A170984.
%K nonn,fini,full
%O 0,15
%A _N. J. A. Sloane_, Aug 29 2010