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例子
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T(4.0)=1,T(4.1)=0,T(4.2)=-30,T(4.3)=0
z^4*exp(-4s)=z^4-2*z^2/3+1/45-32/(2835*z^2)+O(1/z^4)=(45*z^4-30*z^2+1)/45-32/(2835*z^2。
三角形T(n,k)(行n>=0,列k>=0)的开头如下:
1
0, 1;
-1, 0, 3;
0, -1, 0, 2;
1, 0, -30, 0, 45;
0, 7, 0, -60, 0, 72;
-1, 0, 21, 0, -105, 0, 105;
...
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