Concept:The odd term breaks a repeating numerical pattern.Explanation:The pattern is: −2,+1,−3,+1,−4,+1.Check the sequence:2197−2=21952195+1=21962196−3=2193, but the given term is 2993.2193+1=21942194−4=21902190+1=2191So, 2993 is the incorrect term.Answer:2993