The answer is 39.
Solution: x = 2^(n-1)+n+1
Where:
x is number inside the triangle
n is triangle number counting from the top (n=1 for the first one, n=2 for the second etc).
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The answer is 39.
Solution: x = 2^(n-1)+n+1
Where:
x is number inside the triangle
n is triangle number counting from the top (n=1 for the first one, n=2 for the second etc).