数学奥林匹克报--数学游戏、益智数学玩具、趣味数学问题最新20篇论坛主题http://www.mathoe.comzh-cn数学奥林匹克报http://www.mathoe.comRss Generator By Dvbbs.Net765966877@qq.com十八罗汉阵http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44804&Page=1無言2014-10-12 14:18:00“组合恒等式”与“阶乘的扩张”http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44710&Page=1無言2013-10-31 20:43:00腾筐猜想http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44676&Page=1無言2013-4-11 23:11:00关于(x^2+1)(y^2+1)=z^2+1的整数解http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44669&Page=1無言2012-12-3 18:31:00两个三角形数之和为一个三角形数http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44668&Page=1無言2012-11-20 17:08:004个整数中，任两数之和都为立方数http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44667&Page=1無言2012-11-6 14:18:00n非3的整倍数，总有连续n^3个自然数的立方和为一整立方数http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44666&Page=1無言2012-10-31 21:48:00任一有理数均为4个有理数的立方和http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44655&Page=1無言2012-10-6 18:25:00n充分大时， n内素数的个数约为√n内的所有素数之和http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44609&Page=1無言2012-2-8 11:36:00自然数螺旋方阵、蛇形方阵行列式http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44599&Page=1無言2011-11-16 13:50:00华林Waring 问题还在继续http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44371&Page=1無言2011-5-22 15:02:00正整数n(n>11)等于若干合数之和，这些合数之积为最大http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44134&Page=1無言2011-2-25 18:19:00任一三角形均为等腰梯形拼成http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=44133&Page=1無言2011-2-23 10:01:00互素阶乘http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=43877&Page=1無言2011-1-8 14:40:00双圆定中有定http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=43248&Page=1無言2010-10-11 16:19:00[原创]五角星定理：任一五角星，将其外围线段相间地分为两组，各组5条线段长度之积相等。http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=43054&Page=1無言2010-9-16 16:57:00六点圆http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=43033&Page=1無言2010-8-4 17:11:00寻第六类可劈数http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=43000&Page=1無言2010-6-2 19:07:00不重不漏阿拉伯数字使尽，有高有低恒等式符号用唯http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=42952&Page=1無言2010-5-22 11:05:00三弧形化蝶http://www.mathoe.com/dispbbs.asp?BoardID=103&ID=42948&Page=1無言2010-5-17 19:17:00