Make a checkerboard matrix
Swap the first and last columns
Check if sorted
Solve the Sudoku Row
Project Euler: Problem 1, Multiples of 3 and 5
Count alternating permutations
Investigate the frequency of last non-zero digits of primorials
Find the zeros of the Bessel function of the first kind
Find the last non-zero digit in a primorial
Evaluate the prime zeta function
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