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User:Xiangyu Chen
From OeisWiki
Student at Western Canada High School, Calgary, AB, Canada.
https://math.stackexchange.com/users/472835/v-chen https://artofproblemsolving.com/community/user/438009 https://plus.google.com/109131117307330965740?tab=wX&pageId=none (https://oeis.org/A293865)