Help pls thanks a lot :)) can't understand

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Secondary 1 | Maths
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Secondary 1 Maths

Help pls thanks a lot :)) can't understand

Date Posted: 6 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

The rule in the table means :
The nos of squares that appear in Tn
= nxn

Date Posted: 6 years ago