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A355343飞机 |
| G.f.:A(x,y)=Sum_{n=-oo..+oo}(x*y)^(n*(n+1)/2)*C(x)^n,其中C(x)=1+x*C(x)^2是加泰罗尼亚语数字的G.f(A000108号),作为a(x,y)中x^n*y^k的系数T(n,k)的三角形,由行n>=0读取。 |
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2, -1, 2, -1, -1, 0, -2, 1, 0, 2, -5, 3, 0, -1, 0, -14, 9, 0, 5, 0, 0, -42, 28, 0, 13, 0, 0, 2, -132, 90, 0, 39, 0, 0, -1, 0, -429, 297, 0, 123, 0, 0, 11, 0, 0, -1430, 1001, 0, 401, 0, 0, 28, 0, 0, 0, -4862, 3432, 0, 1340, 0, 0, 89, 0, 0, 0, 2, -16796, 11934, 0, 4565, 0, 0, 293, 0, 0, 0, -1, 0, -58786, 41990, 0, 15795, 0, 0, 987, 0, 0, 0, 19, 0, 0, -208012
(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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0,1
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链接
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公式
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G.f.A(x,y)=求和{n>=0}x^n*Sum_{k=0..n}T(n,k)*y^k等于以下表达式;这里,C(x)=1+x*C(x)^2是加泰罗尼亚数字的g.f(A000108号).
(1) A(x,y)=和{n=-oo..+oo}(x*y)^(n*(n+1)/2)*C(x)^n,
(2) A(x,y)=和{n>=0}(x*y)^(n*(n+1)/2)*(C(x)^n+1/C(x)。
(3) A(x,y)=1/C(x)*Product_{n>=1}(1+(x*y)^n/C(x))*(1+。
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例子
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通用公式:A(x,y)=2+(2*y-1)*x+(-y-1)*x^2+(2*y^3+y-2)*x^3+(-y^3+3*y-5 429)*x^8+(28*y^6+401*y^3+1001*y-1430)*x*9+。。。
哪里
A(x,y)=…+(x*y)^6/C(x)^4+(x*y)^(n*(n+1)/2)*C(x)^n+。。。
g.f.A(x,y)中x^n*y^k的系数T(n,k)的三角形,对于第n行中的k=0..n,开始于:
n=0:[2];
n=1:[-1,2];
n=2:[-1,-1,0];
n=3:[-2,1,0,2];
n=4:[-5,3,0,-1,0];
n=5:[-14,9,0,5,0,0];
n=6:[-42,28,0,13,0,0,2];
n=7:[-132、90、0、39、0、0、-1、0];
n=8:[-429,297,0,123,0,0,11,0,0];
n=9:[-1430,1001,0,401,0,0,28,0,0,0,0];
n=10:[-4862,3432,0,1340,0,0、89,0、0、0,2];
n=11:[-1679611934,04565,0,0,293,0,0,0,-1,0];
n=12:[-5878641990,015795,0,0,987,0,0,0,19,0,0];
n=13:[-208012149226,0,55354,0,0,3384,0,0,0,0;
n=14:[-742900,534888,0,196078,0,0,11769,0,0,0,0,165,0,0,0,10,0];
n=15:[-2674440、1931540、0、700910、0,0、41418、0、0;
n=16:[-9694845,7020405,0,2525214,0,0,147224,0;
...
[2, 1, -2, 1, -3, 0, 1, -4, 2, 0, 1, -5, 5, 0, 0, 1, -6, 9, -2, 0, 0, 1, -7, 14, -7, 0, 0, 0, 1, -8, 20, -16, 2, 0, 0, 0, 1, ...],
它又可以写成三角形:
2,
1、-2,
1, -3, 0,
1, -4, 2, 0,
1, -5, 5, 0, 0,
1, -6, 9, -2, 0, 0,
1, -7, 14, -7, 0, 0, 0,
1, -8, 20, -16, 2, 0, 0, 0,
1, -9, 27, -30, 9, 0, 0, 0, 0,
1, -10, 35, -50, 25, -2, 0, 0, 0, 0,
1, -11, 44, -77, 55, -11, 0, 0, 0, 0, 0,
1, -12, 54, -112, 105, -36, 2, 0, 0, 0, 0, 0,
...
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黄体脂酮素
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(PARI){T(n,k)=my(A,C=serreverse(x-x^2+x^2*O(x^n))/x,M=平方(2*n+9)););
A=总和(m=-m,m,(x*y)^(m*(m+1)/2)*C^m);polceoff(polceof(A,n,x),k,y)}
对于(n=0,16,对于(k=0,n,print1(T(n,k),“,”));打印(“”)
(PARI){T(n,k)=my(A,C=serreverse(x-x^2+x^2*O(x^n))/x,M=平方(2*n+9));
A=总和(m=0,n+2,(x*y)^(m*(m+1)/2)*(C^m+1/C^(m+1));polceoff(polceof(A,n,x),k,y)}
对于(n=0,16,对于(k=0,n,print1(T(n,k),“,”));打印(“”)
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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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