About: http://webisa.webdatacommons.org/369072677

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	Removing the condition for the diagonals it seemed possible to find solutions only when N ??? 4K + 2 (K is a positive integer), and this was Euler's conjecture.
http://www.w3.org/ns/prov#wasQuotedFrom	chilton-computing.org.uk