PUMaC 2024 · 数论（A 组） · 第 6 题

PUMaC 2024 — Number Theory (Division A) — Problem 6

Let Pascal’s triangle be constructed where each is written inside its own cell in row n . i n Colby colors the cells red for 1 ≤ n ≤ 63 when is divisible by 4. How many cells does he i color red?

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