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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.
I had exactly the same idea, but done that a bit harder, thank you! ^_^
wp :)
> 0is redundant in this case cuz zero converts to false and any positive numbers converts to trueNice solutuion, but what about 12157692622039623539? :D
Found it here: https://oeis.org/A032799