These are square numbers. 12 × 12 = 144, 11 × 11 = 121, 10 × 10 = 100, 9 × 9 = 81, 8 × 8 = 64 so, 7 × 7 = 49
The next number is 49
49
49
== 49 == 144 = 122 121 = 112 100 = 102 81 = 92 64 = 82 Implies 122, 112, 102, 92, 82 So the next number should be 72 = 49. So, the next number is 49.
121
121
100 is the next square number (10 x 10)
49
100, 121, 144...
144
121/100 = 121/100
121As 100 = 102 then the next largest square number will have to be 112 which is equal to 121.
36...49....64...81...100...121...144 They are the square numbers.