Euler's Pentagonal Numbers Theorem/Corollary 2/Historical Note

Historical Note on Euler's Pentagonal Numbers Theorem: Corollary 2

Leonhard Paul Euler had noticed, but had not formally proved, the result now known as Euler's Pentagonal Numbers Theorem.

However, he was so convinced of its truth that he used it to prove this and other results.

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $22$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $22$