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polygonal numbers

Figure 1: Polygonal arrays.

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Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

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Srinivasa Ramanujan, Indian mathematician and autodidact.

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polygonal number: Media

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polygonal numbers

polygonal numbers

The ancient Greeks generally thought of numbers in concrete terms, particularly as...

Encyclopædia Britannica, Inc.

Figure 1: Polygonal arrays.

Figure 1: Polygonal arrays.

Encyclopædia Britannica, Inc.