Find the closed formula for each of the following sequences (an)n>1 by relating them to a well known sequence. Assume the first term given is a₁. a. 0, 3, 8, 15, 24,... an = b. 2, 4, 7, 11, 16,... an = c. 6, 11, 18, 27, 38, ... an= 8-

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