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G.f.（t^49+2*t^48+2*t ^47+2*t ^46+2*t^45+2*t1^44+2*t^43+2*t^42+
2*t^41+2*t^40+2*t439+2*t38+2*t337+2*t36+2*t35+2*t34+
2*t^33+2*t^32+2*t=31+2*t|30+2*t*29+2*t`28+2*t` 27+2*t'26+
2*t^25+2*t^24+2*t*23+2*t|22+2*t$21+2*t`20+2*t` 19+2*t''18+
2*t^17+2*t^16+2*t*15+2*t=14+2*t#13+2*t=12+2*t_11+2*t|10+
2*t^9+2*t^8+2*t|7+2*t*6+2*t$5+2*t_4+2*t_3+2*t_2+2*t+
1） /（1035*t^49-45*t^48-45*t ^47-45*t ^46-45*t ^45-45*t^44-
45*t^43-45*t^42-45*t ^41-45*t ^40-45*t*t ^39-45*t ^38-45*t-37-
45*t^36-45*t^35-45*t ^34-45*t ^33-45*t*t^32-45*t^31-45*t1^30-
45*t^29-45*t^28-45*t ^27-45*t1^26-45*t\^25-45*t%^24-45*tl^23-
45*t^22-45*t^21-45*t ^20-45*t ^19-45*t ^18-45*t ^17-45*t^16-
45*t^15-45*t^14-45*t ^13-45*t ^12-45*t ^11-45*t ^10-45*t*9-
45*t^8-45*t^7-45*t ^6-45*t ^5-45*t1^4-45*t*t^3-45*t\^2-45*t+1）
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