[a1call]

For reference purposes:

Originally Posted by R. Gerbicz

https://medium.com/@dinber19/more-wi...s-8ba1a2cd8b67
https://www.medrxiv.org/content/10.1....26.20039438v1

Pretty trivial, I guessed the method after I have first read only the lead of a similar article in Hungarian that we could easily test ten millions in a few days and the number 64.