Instructions

Each of the questions follow a definite pattern. Observe the same and fill in the blanks with suitable answers.

Question 44

If $$\left\{a_n\right\}_{n - 1}^{\infty}$$ is such that $$a_1 = a_2 = 1$$ and $$a_k = a_1 + a_2 + ......... + a_{k - 1}$$ for $$k \geq 3$$, then $$a_7 =$$


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