Square Spiral

Example

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Side Length Pattern

11 22 33 44 55 ...

Side Length Pattern With Turns

1 <turn right> 1 <turn right> 2 <turn right> 2 <turn right> 3 <turn right> 3 <turn right>
4 <turn right> 4 <turn right> 5 <turn right> 5 <turn right> ...