Find the missing term, 4, 9, 25, ?, 121, 169, 289, 361

49
64
81
87

The missing term is 64.

The sequence is a list of squares of the first 9 natural numbers.

4 = 2^2
9 = 3^2
25 = 5^2
64 = 8^2
121 = 11^2
169 = 13^2
289 = 17^2
361 = 19^2