Numbers written in both forms – math.stackexchange.com 03:43 Posted by Unknown No Comments I have come across the OEIS series A031363. It has this description: Positive numbers of the form $x^2+xy-y^2$; or, of the form $5x^2-y^2$. So it is saying that all numbers that can be written in ... from Hot Questions - Stack Exchange OnStackOverflow via Blogspot Share this Google Facebook Twitter More Digg Linkedin Stumbleupon Delicious Tumblr BufferApp Pocket Evernote Unknown Artikel TerkaitHow to avoid constantly starting paragraphs with "The character did this" "The character did that"? – writers.stackexchange.comIs it possible to be a socialist and a capitalist? – politics.stackexchange.comIs there a 'Restore session' argument for Firefox? – superuser.comPathfinding with lock and key? – gamedev.stackexchange.comHow to avoid being accused of harassment by a student? – academia.stackexchange.comAWK: how to select lines by the number of words in one field? – unix.stackexchange.com
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