No it's not. We notice that we add 11 each time to get the next number. We subtract 2nd term minus 1st term, then 3rd term-2nd term, etc., and observe the pattern. Then follow the same pattern to form the next three. sequence 2nd-1st 3rd-2nd 4th-3rd pattern next 3 –6, 5, 16, 27, 5-(-6)=11 16-5=11 27-16=11 +11,+11,+11 38,49,60 Reason: 27+11=38, 38+11=49, 49+11=60 Edwin