行多项式的比率R(3)/R(2)=(3+5*x+3*x^2+x^3)/(2+2*x+x^2)=[1+x;1+x,1+x]。
三角形开始:
1;
1, 1;
2, 2, 1;
3, 5, 3, 1;
5, 10, 9, 4, 1;
8, 20, 22, 14, 5, 1;
13, 38, 51, 40, 20, 6, 1;
21, 71, 111, 105, 65, 27, 7, 1;
34, 130, 233, 256, 190, 98, 35, 8, 1;
55, 235, 474, 594, 511, 315, 140, 44, 9, 1;
89, 420, 942, 1324, 1295, 924, 490, 192, 54, 10, 1;