What should come in place of question mark (?) in the following number series ?
32, ?, 52, 88, 152, 252
Squares of consecutive even numbers are added
32 + $$2^2$$ = 36
36 + $$4^2$$ = 52
52 + $$6^2$$ = 88
88 + $$8^2$$ = 152
152 + $$10^2$$ = 252
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