The meaning of the title is: as long as k belongs to the range of m, as long as n is greater than the range of k, no matter how much it satisfies the equation. Therefore, suppose that the set of m belongs to some real numbers, and as long as k belongs to these real numbers, these given lower bounds n are greater than these K.
Why should we take 8 as the boundary? The main purpose is to make arithmetic series, where n is 3 and 4 respectively, have the same number of arithmetic terms. Otherwise, why bother with K=3 or K=4? Exactly, when n≥8, there are the same number of terms a(n+6).
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