36...49....64...81...100...121...144 They are the square numbers.
81
81
25 36 49 64 81 100 121 144
Although there are a number of answers, most likely you are looking for 49.
121.
169
225
289 because each consecutive prime number is squared.
49
100, 121, 144...
49
144
== 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.
36...49....64...81...100...121...144 They are the square numbers.
49, 36, 25...
49