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] -> 
Find the longest sequence of 1's in a binary sequence.
What is the next step in Conway's Life?
Count from 0 to N^M in base N.
Back to basics 8 - Matrix Diagonals
Extra safe primes
Numbers spiral diagonals (Part 2)
Recycled Numbers (CodeJam Qualification Round 2012)
I want to know everything!
Getting the indices from a matrice
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