MathDB
Problems
Contests
National and Regional Contests
USA Contests
USA - Middle School Tournaments
LMT
2021 LMT Spring
B14
2021 Spring LMT Division B Problem 14
2021 Spring LMT Division B Problem 14
Source:
January 22, 2022
combinatorics
Problem Statement
In the expansion of
(
2
x
+
3
y
)
20
(2x +3y)^{20}
(
2
x
+
3
y
)
20
, find the number of coefficients divisible by
144
144
144
.Proposed by Hannah Shen
Back to Problems
View on AoPS