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G.f.（t^48+2*t^47+2*t^46+2*t^45+2*t^44+2*t^43+2*t^42+2*t^41+
2*t^40+2*t^39+2*t|38+2*t*37+2*t#36+2*t$35+2*t#14+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） /（10*t^48-4*t^47-4*t ^46-4*ts ^45-4*th ^44-4*te ^43-4*tt ^42-
4*t^41-4*t^40-4*t^39-4*t*38-4*t ^37-4*t ^36-4*t^35-4*t^34-
4*t^33-4*t*32-4*t ^31-4*t^30-4*t ^29-4*t^28-4*t ^27-4*t1^26-
4*t^25-4*t*24-4*t ^23-4*t ^22-4*t^21-4*t^20-4*t-19-4*t18-
4*t^17-4*t^16-4*t^15-4*t^14-4*t*13-4*t^12-4*t=11-4*t*10-
4*t^9-4*t*8-4*t ^7-4*t ^6-4*t^5-4*t^4-4*t ^3-4*t1^2-4*t1+1）
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