Question: vector of lists- how do I access indivual elements and perform operations with range variables?

I'm trying to use what is essentially a vector of lists within and expression, using a range variable as one of the indexes, and it doesn’t seem to calculate any result.  Just looking for help or pointers, and I included an example of what I'm talking about in the attached maple doc.  I can convert it into a matrix and get it to calculate the result, however I’m suspecting there must be some way to use the Vector directly but I couldn’t see how to do it.



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