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
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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