I think the description may be more appropriate to say the 'sum of all the numbers in the triangle'.
Swap the first and last columns
Given an unsigned integer x, find the largest y by rearranging the bits in x
Cell Counting: How Many Draws?
Side of an equilateral triangle
Matlab Basics - Rounding III
Find the Pattern 1
Temperature Conversion 3
Number Puzzle - 068
Number Puzzle - 073
Number Puzzle - 082
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