Replicate each element of a row vector (with NaN) a constant number of times.
n=2, A=[1 2 3] -> [1 1 2 2 3 3]
n=0, A=[2 1] -> 
Distance walked 1D
Back to basics 3 - Temp Directory
kmph to mps
Narcissistic number ?
Decrypt the cypher using XOR encryption (for beginners)
BLOCK x3 (Version 3)
Numbers spiral diagonals
Pandigital number n°1 (Inspired by Project Euler 32)
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