Matrices

[Eiman]

Please would you kindly tell me how to:
Compute the number of lines in the following matrix of integers of the size 20*20 which represents rearrangement of numbers 1,2,………….20

 

[Zack Barresse]

Hello Eiman, welcome to the board!

Can you explain your data a little more? What do you mean by Compute the number of lines..?? Can you post an example of your sheet using Colo's HTML Maker (link at bottom of page) addin?