Hexagonal Ulam Spiral

So today, yet again, due to overcalculating how lost I’ll get and delay factors, I arrived at the recitation room an hour early, so I decided to fill up the time by making a hexagonal Ulam Spiral.

The pen-demarcated spiral indicates the hexagonal numbers. Notice that there’s some prime arteries (or as Vi Hart would call them, prime ribs) here as well.

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