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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） /（465*t^49-30*t^48-30*t ^47-30*ts ^46-30*th ^45-30*st ^44-30*tt ^43
-30*t^42-30*t^41-30*t|40-30*t*39-30*t$38-30*t#37-30*t=36-
30*t^35-30*t^34-30*t^33-30*t^32-30*t^31-30*t^30-30*t^29-
30*t^28-30*t^27-30*t|26-30*t*25-30*t`24-30*t` 23-30*t'22-
30*t^21-30*t^20-30*t|19-30*t|18-30*t*17-30*t*16-30*t*15-
30*t^14-30*t^13-30*t|12-30*t|11-30*t*10-30*t*9-30*t$8-
30*t^7-30*t*6~30*t^5-30*t|4-30*t$3-30*t#2-30*t+1）
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