
Pearls in a Row
There are n pearls in a row. Let’s enumerate them with integers from 1 to n from the left to the right. The pearl number i has the type a i. Let’s call a sequence […]
There are n pearls in a row. Let’s enumerate them with integers from 1 to n from the left to the right. The pearl number i has the type a i. Let’s call a sequence […]