36 - The sequence is deducting two from the difference between the two numbers each time.
81-64=17
64-49=15 therefore
49-36=13
It is squire of numbers in decending order
9*9=81
8*8=64
7*7=49
6*6=36
121
81
The next number will be 25 because 5 times 5 = 25
49 equals 72, and the next square number is 82 = 64.
25, 36, 49, 64, 81, 100...
121
49
144
81
100. the pattern is 7 squared, 8 squared, 9 squared....
The next number will be 25 because 5 times 5 = 25
49 equals 72, and the next square number is 82 = 64.
The next number in the sequence 2, 4, 16, 64 is 256.
The next number in the sequence is... 64
25, 36, 49, 64, 81, 100...
81
125 (the sequence is successive numbers cubed)