Choose the missing terms out of the given alternatives : J2Z, K4X, I7V, ? , H16R, M22P

The first letters in odd numbered terms from series. J - 1 = I - 1 = H and in even numbered terms from series K + 1 = L + 1 = M Middle Number : 2 + 2 = 4 + 3 = 7 + 4 = 11 + 5 = 16 + 6 = 22 3rd letter : Z - 2 = X - 2 = V - 2 = T - 2 = R - 2 = P