Python one-liner expression (2 questions). ONLY using map, filter, functools, itertools, range, and lambda. Thanks!!

Write a one-line expression that computes a list of the first twenty harmonic numbers. Recall that the n-th harmonic number is given by Hn = Dk-,1/k. For ease of grading, please assign the output of this expression to a variable called harmonics. Write a one-line expression that computes the geometric mean of the first 12 octa- hedral numbers. You may use the generator that you wrote in the previous problem. Recall that the geometric mean of a collection of n numbers aj, a2, ..., an is given by (IT-, a;). For ease of grading, please assign the output of this expression to a variable called octa_geom