Can you find the last number in series?

5 8 17 47 242 ?

1967

The next number in the series is based on formula Next = (1st Number)^2 - (2nd number)

5^2 - 8 = 17
8^2 - 17 = 47
17^2 - 47 = 242
47^2 - 242 = 1967.

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