About: http://webisa.webdatacommons.org/84795138

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	In fact there is a formula (I think by Euler)$$\cdots(1-\frac z{-3})(1-\frac z{-2})(1-\frac z{-1})z(1-\frac z1)(1-\frac z2)(1-\frac z3)\cdots=\frac1\pi\sin(\pi z)$$reflecting precisely that.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com