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%I #7 Jan 06 2020 09:15:21
%S 0,2,4,2,-2,-6,-9,-6,0,6,9,6,0,-8,-11,-8,0,8,12,8,0,-8,-12,-7,1,9,13,
%T 9,1,-7,-12,-8,0,10,15,10,0,-10,-15,-10,2,12,17,12,2,-10,-15,-10,0,10,
%U 15,10,-2,-12,-17,-12,-2,8,14,9,-3,-15,-21,-15,-3,9,15,8
%N a(n) is the real part of f(n) (as defined in A330780).
%H Rémy Sigrist, <a href="/A331004/b331004.txt">Table of n, a(n) for n = 0..10000</a>
%H Rémy Sigrist, <a href="/A331004/a331004.gp.txt">PARI program for A331004</a>
%o (PARI) See Links section.
%Y Cf. A330780.
%K sign
%O 0,2
%A _Rémy Sigrist_, Jan 05 2020