Let f(n) be the sum of the first n terms of the sequence 0, 1, 1, 2,
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Let f(n) be the sum of the first n terms of the sequence 0, 1, 1, 2, 2, 3, 3, 4, . . ., where the nth term is given by
Show that if x and y are positive integers and x > y then xy = f(x + y) = f(x - y).
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f1 0 f2 1 f3 2 4 4 n4 In general fn See below for a proof of this x y and x y are either b...View the full answer
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