What is the sum of the following sequence:
Σk(k+1) for k=1...n
for different n?
Additional test cases have been added.
Which doors are open?
Maximum running product for a string of numbers
Back to basics 3 - Temp Directory
Find the nearest integer
Sum of diagonals elements of a matrix
Sum of series VI
Sum of series I
Sum of series IV
Sum of series II
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