08:4108:41, 20 November 2011diffhist+941
Square pyramidal number
(sorry I pressed enter unintentionally) I joined this new contribution to the proof. I think a proof of the fact spotted by G.N. Watson should be added.
14:2314:23, 19 November 2011diffhist+539
Square pyramidal number
Undid revision 461427285 by
Ozob (
talk) as you can read a lot of people appreciated my proof.ok,my english is not good,so anoth user improved it.why this page can't have a proof?stop it!
08:4108:41, 20 November 2011diffhist+941
Square pyramidal number
(sorry I pressed enter unintentionally) I joined this new contribution to the proof. I think a proof of the fact spotted by G.N. Watson should be added.
14:2314:23, 19 November 2011diffhist+539
Square pyramidal number
Undid revision 461427285 by
Ozob (
talk) as you can read a lot of people appreciated my proof.ok,my english is not good,so anoth user improved it.why this page can't have a proof?stop it!