the solution is 168. formula is n^2+integers ascending/descending from 20, depending on what n equals. for example. the 1st number equals 1^2+20. the 2nd, 2^2+20+21. 3rd = 3^2=20+19+18. 4th, 4^2+20+21+22+23, 5th= 5^2+20+19+18+17+16.odd bases you descend from 20, even bases you asecend from 20. so for the question mark, you would do 7^2+20+19+18+17+16+15+14=168

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