$n \ge 2, B_n = -\frac{1}{n+1} \sum_{m=0}^{n-1} \binom{n+1}{m} B_m$
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We have a sequence B_n defined as B_n = -n + 7. We are asked to find the sum of B_m for m = 1 to m = n. We can write the sum as: S = B_1 + B_2 + ... + B_n Now, we can substitute the formula for B_m: S = (-1 + 7) + (-2 + 7) + ... + (-n + 7) Simplify the Show more…
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