About: http://webisa.webdatacommons.org/119939486

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	My algebra is a little rusty, and I cannot follow how this proof gets to the second step of (1/4)k^2(k+1)^2+(k+1)^3.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com