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Below there are a few recursive formulas and examples calculate terms of the sequences from their. {a_1 = 2, a_(n+1) = a_n + 1}, a_1 = 2, a_2 = a_1 + 1 = 2 + 1 = 3, a_3 = a_2 + 1 = 3 + 1 = 4, a_4 = a_3 + 1 = 4 + 1 = 5, {a_1 = 1, a_(n+1) = a_n^2 - 3}, a_1 = 1, a_2 = a_1^2 - 3 = 1 - 3 = -2, a_3 = a_2^2 - 3 = (-2)^2 - 3 = 4 - 3 = 1, a_4 = a_3^2 - 3 = 1^2 - 3 = 1 - 3 = -2.