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A338415飞机 |
| 按行读取三角形:T(n,m)=C(n+m+1,n)*C(2*n-m,n)*C(3*n+1,n。 |
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1, 2, 2, 7, 18, 7, 30, 130, 130, 30, 143, 884, 1530, 884, 143, 728, 5880, 14896, 14896, 5880, 728, 3876, 38760, 131100, 193200, 131100, 38760, 3876, 21318, 254562, 1085238, 2153250, 2153250, 1085238, 254562, 21318, 120175, 1669800, 8627300, 21755800, 29370330, 21755800, 8627300, 1669800, 120175
(列表;桌子;图表;参考;听;历史;文本;内部格式)
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抵消
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0,2
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链接
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配方奶粉
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G.f.满足A(x,y)=x/。
A(x,y)=((x*(27*y^4-108*y^3+162*y^2+(-108)*y+27)-2*y^3+66*y^2+66*y-2)/(54*y^6-324*y^5+810*y^4+2+((-108)*x^2+132*x-16)*y+27*x^2+(-4)*x)/(2*3^(3/2)*(y-1)^4)^(1/3)+(y^2+14*y+1)/(9*y^4-36*y^3+54*y^2+(-36)*y+9)**y+27)-2*y^3+66*y^2+66*y-2)/(54*y^6-324*y^5+810*y^4+(-1080)*y^3+810*y^2+(-324)*y+54)+平方(27*x^2*y^4+((-108)*x^2-4*x)*y ^3+(162*x^2+132*x)*y^2+(2*3^(3/2)*(y-1)^4))^(1/3))+(2*y+2)/(3*(y^2-2*y+1))。
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例子
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1,
2, 2,
7, 18, 7,
30, 130, 130, 30,
143, 884, 1530, 884, 143
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黄体脂酮素
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(最大值)
A(x,y):=((x*(27*y^4-108*y^3+162*y^2+(-108)*y+27)-2*y^3+66*y^2+66*y-2)/^2+((-108)*x^2+132*x-16)*y+27*x^2+(-4)*x)/(2*3^(3/2)*(y-1)^4)^(1/3)+(y^2+14*y+1)/(9*y^4-36*y^3+54*y^2+(-36)*y+9)**y+27)-2*y^3+66*y^2+66*y-2)/(54*y^6-324*y^5+810*y^4+(-1080)*y^3+810*y^2+(-324)*y+54)+平方(27*x^2*y^4+(-108)*x^2-4*x)*y*3+(162*x^2+132*x)*y^2+(2*3^(3/2)*(y-1)^4))^(1/3))+(2*y+2)/(3*(y^2-2*y+1));
泰勒(A(x,y),x,0,7,y,0,7y);
(最大值)
T(n,m):=(二项式(n+m+1,n)*二项式;
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交叉参考
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关键词
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作者
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状态
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经核准的
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