About: http://webisa.webdatacommons.org/175268888

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Given that n is a positive integer, the equation, x2 ??? y2 ??? z2 = n, has exactly one solution when n = 20:
http://www.w3.org/ns/prov#wasQuotedFrom	projecteuler.net