This is an offshoot of Cody Problem 5: Triangle Numbers.
Triangle numbers are the sums of successive integers. So 6 is a triangle number because
6 = 1 + 2 + 3
which can be displayed in a triangular shape like so
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* *
* * * Return all triangle numbers below N.
Find state names that start with the letter N
433 Solvers
Least common multiple of many numbers
156 Solvers
Return elements unique to either input
446 Solvers
Convert from Base 10 to base 5
116 Solvers
401 Solvers
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