huh, i was puzzling over the fact that a very normal looking hexagonal grid with four tiles to a side has a weird (prime!) number of tiles (37), assumed "hexagonal numbers" would be the right keyterm to explain it, but... the way they're defined according to https://en.wikipedia.org/wiki/Hexagonal_number doesn't align at all
@chrisamaphone hexagonal grids are a deep well of weirdness
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@shovemedia @chrisamaphone actually as simple as a 2D isometric projection of a regular 3D grid
