Grid Coloring Exactly One Per Subgrid

1925SpecialistCombinatoricsCounting Principles

MMO2025 Round 2 · 2025

Let $n \ge 2$. Determine the number of ways to color the cells of a $4 \times n$ grid such that every $2 \times 2$ subgrid contains exactly one colored cell. (Batbayasgalan Balkhuu)

0 students attempted0% solvedRating 1925

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Grid Coloring Exactly One Per Subgrid

1925SpecialistCombinatoricsCounting Principles

MMO2025 Round 2 · 2025

Let $n \ge 2$. Determine the number of ways to color the cells of a $4 \times n$ grid such that every $2 \times 2$ subgrid contains exactly one colored cell. (Batbayasgalan Balkhuu)

0 students attempted0% solvedRating 1925