User talk:Mensaboy67

September 2015
Hello, I'm Gogo Dodo. An edit that you recently made to Octagonal number seemed to be a test and has been removed. If you want more practice editing, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks! -- Gogo Dodo (talk) 16:29, 30 September 2015 (UTC)