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Most of us are familiar with triangular numbers, such as the arrangement of ten bowling pins in a triangle,
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or square numbers,
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but we don't necessarily know how their arithmetic works, or whether we can do the same with, say, pentagons.
Can we learn something by telling a turtle how to make these numbers? Let's try.
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. .
.
or square numbers,
. . . .
. . . .
. . . .
. . . .
but we don't necessarily know how their arithmetic works, or whether we can do the same with, say, pentagons.
Can we learn something by telling a turtle how to make these numbers? Let's try.