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例子
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通用公式:A(x)=1+x+11*x^2+72*x^3+734*x^4+6994*x*^5+74641*x^6+。。。
设A=g.f.A(x),则g.f.的对数等于级数:
对数(A(x))=(1+3^2*x*A^2+2^2*x^2*A^4)*x*A+
(1+6^2*x*A^2+13^2*x2*A^4+12^2*x^3*A^6+4^2**x^4*A^8)*x^2*A^2/2+
(1+9^2*x*A^2+33^2*x2*A^4+63^2*x^3*A^6+66^2*x^4*A^8+36^2*x ^5*A^10+8^2*x ^6*A^12)*x^3*A^3/3+
(1+12^2*x*A^2+62^2*x ^2*A^4+180^2*x ^3*A^6+321^2*x ^4*A^8+360^2*x^5*A^10+248^2**x^6*A^12+96^2*x2^7*A^14+16^2*x-^8*A^16)*x^4*A ^4/4+。。。
1;
1, 3, 2;
1, 6, 13, 12, 4;
1, 9, 33, 63, 66, 36, 8;
1, 12, 62, 180, 321, 360, 248, 96, 16;
1, 15, 100, 390, 985, 1683, 1970, 1560, 800, 240, 32; ...
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