The Lucky Tickets
Artem Vasil'evich Logachov, Olga M. Logachova, Stanislav Russijan · Mathematics Magazine · 2022
Summary“Lucky tickets” are n-digit numbers whose digits satisfy various arithmetical equations. For example, a Moscow lucky ticket is a six-digit number in which the sum of the first three digits is the same as the sum of the last three digits. We summarize the story of lucky tickets, and introduce the notion of k-lucky tickets. Then we find formulas for calculating of the total numbers of such tickets.