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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
but the question says
Given the triangle of consecutive odd numbers:and don't suggest on bulding one.would have been better if the format of the question is reformated or give clean picture on how to access the triangle
of numbers
amazing