But to align with context, perhaps the intended meaning is: the number of nearest-neighbor pairs in a $ 4 imes4 $ grid is $ 2 imes 4 imes 3 = 24 $, and the sum is misstated.

Thu, 30 Apr 2026 08:41:23 +0000

**But to align with context, perhaps the intended meaning is: the number of nearest-neighbor pairs in a 4×4 grid is 2×4