440

440⁶ = 93⁶+93⁶+195⁶+197⁶+303⁶+303⁶+303⁶+411⁶

440⁶ = 219⁶+255⁶+261⁶+267⁶+289⁶+351⁶+351⁶+351⁶

Undergraduate Texts in Mathematics

Graduate Texts in Mathematics

Graduate Studies in Mathematics

Mathematics Encyclopedia

World

Index

Hellenica World - Scientific Library