"Один студент, три студенти, п'ять студентів, п'ятнадцять студентів"

Translation:One student, three students, five students, fifteen students

August 17, 2015

3 Comments


https://www.duolingo.com/lambertsimnel

I hope they're studying Sierpiński's triangle ( http://oeis.org/A001317 ).

August 17, 2015

https://www.duolingo.com/Q8bU2

Problems

January 6, 2019

https://www.duolingo.com/MichailoGM

The Fibonacci sequence is used in the number of lessons per level in Duolingo. Is there a mathematician on the staff?

March 21, 2019
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