On the index of stability of (r, s)-linear Weingarten Clifford tori

For entire numbers r and s satisfying 0 ≤ n − 2, we showed that the index of (r, s)-stability a s)-linear Weingarten Clifford torus immersed into (n + 1)-dimensional unit Euclidean sphere, has linear combination their higher order mean curvatures Hr+1 Hs+1 being null, is exactly equal to 3 provided geometric condition involving Hr+2 Hs+2 satisfied.