0   1
 1   0.38268343236508734
 2   -0.7071067811865491
 3   -0.9238795325112952
 4   -4.496786488857628e-15
 5   0.923879532511285
 6   0.7071067811865556
 7   -0.38268343236509295
 8   -1
 9   -0.38268343236509295
 10   0.7071067811865442
 11   0.9238795325112832
 12   4.496786488857628e-15
 13   -0.9238795325112881
 14   -0.7071067811865507
 15   0.3826834323650834