Starting from 440Hz note (musical note A above middle C), create 13 notes, using twelve-tone equal temperament, in Herz units. https://en.wikipedia.org/wiki/Equal_temperament
Your output will be like [440, ... , 880] all rounded to integer.
Number of 1s in the Binary Representation of a Number
Is my wife right?
Add two numbers
Generate vector according to sign of vector
Number of paths on a 3d grid
The last non-zero digit of a factorial
Number of even divisors of a given number
Make a rainbow matrix (follow-up to checkerboard matrix)
Smallest n, for n! to have m trailing zero digits
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