> #ATTENDANCE QUIZ 23
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> #THE NUMBER OF ATTENDANCE QUESTIONS WERE: 3
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> #Q1
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> #Question 1: Use Lagrange Inversion Formula to find an explicit expression for the coeff of x^n in the power series of u(x) that satisfies the functional equation:
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> #u(x) = x*(1+u(x))^2
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> #u(x) = x*(1+u(x))^3
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> # for any positive integer k   u(x) = x*(1+u(x))^k
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> #Q2
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> #Consider the function above. (i) Draw this directed graph (ii) Find the doubly-rooted tree that is outputted by the joyal bijection 
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> #Q3
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> #Finish this. Find the Pruffer Code (of length 11) of the original tree.
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