This is a toothpick problem

A grid is 6 squares by 6 squares ( you have 36 squares)

the vertical grid is n

the horizontal grid is n

How many toothpicks are required to make the pattern? (suggestion is how many vertical toothpicks are used.

I have a formula but not able to plug in the right numbers to get my solution

vertical = (n+1) xn

horizontal= (n+1) xn

number of toothpicks = 2x(n+1)xn

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