2*atan(x) 49*x --------- + -------------- 2 ___________ 1 + x / 2 \/ 1 - 49*x
2 2 49 2401*x 4*x*atan(x) --------- + -------------- + -------------- - ----------- 2 ___________ 3/2 2 / 2\ / 2 / 2\ / 2\ \1 + x / \/ 1 - 49*x \1 - 49*x / \1 + x /
3 2 12*x 4*atan(x) 7203*x 352947*x 16*x *atan(x) - --------- - --------- + -------------- + -------------- + ------------- 3 2 3/2 5/2 3 / 2\ / 2\ / 2\ / 2\ / 2\ \1 + x / \1 + x / \1 - 49*x / \1 - 49*x / \1 + x /