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L ljfa New Member Jul 29, 2019 2,761 -46 0 Jul 11, 2015 #33,943 1²+2²+3²+10² four-square theorem hehe
lenscas Over-Achiever Jul 31, 2013 2,015 1,801 248 Jul 11, 2015 #33,945 116 and I found the problem forge became out of date >_>