Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.
DNA N-Gram Distribution
Find the sum of the elements in the "second" diagonal
Back to basics 8 - Matrix Diagonals
Side of an equilateral triangle
Longest Collatz Sequence
Permute diagonal and antidiagonal
Negation and new variables
Recycled Numbers (CodeJam Qualification Round 2012)
Pandigital number n°3 (Inspired by Project Euler 32)
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