c = threshold - 1e-5, sum as found: basis 64, blocks [16, 16, 16, 16]; GMP margin: moment form  3.261391e-12 (pdOPT, 82 it), Gram form  3.259837e-12 (pdOPT, 105 it); smallest |coefficient| of the normalised cube 3.259998e-12; 14 s
c = threshold - 1e-5, sum after balancing the variables: basis 64, blocks [16, 16, 16, 16]; GMP margin: moment form  2.686129e-10 (pdOPT, 83 it), Gram form  2.686128e-10 (pdOPT, 104 it); smallest |coefficient| of the normalised cube 2.686128e-10; 14 s
c = 13/4, sum as found: basis 64, blocks [16, 16, 16, 16]; GMP margin: moment form  3.261391e-12 (pdOPT, 82 it), Gram form  3.260059e-12 (pdOPT, 105 it); smallest |coefficient| of the normalised cube 3.259998e-12; 14 s
c = 13/4, sum after balancing the variables: basis 64, blocks [16, 16, 16, 16]; GMP margin: moment form  2.686129e-10 (pdOPT, 83 it), Gram form  2.686128e-10 (pdOPT, 104 it); smallest |coefficient| of the normalised cube 2.686128e-10; 14 s
