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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） /（1081*t^49-46*t^48-46*t^47-46*t^46-46*t^45-46*t^44-
46*t^43-46*t^42-46*t ^41-46*t1^40-46*t%39-46*tl^38-46*t\37-
46*t^36-46*t^35-46*t ^34-46*t1^33-46*t%32-46*tl^31-46*t\30-
46*t^29-46*t^28-46*t ^27-46*t-26-46*t1^25-46*t\24-46*t/23-
46*t^22-46*t^21-46*t ^20-46*t ^19-46*t ^18-46*t ^17-46*t^16-
46*t^15-46*t^14-46*t ^13-46*t ^12-46*t ^11-46*t^10-46*t*9-
46*t^8-46*t*7-46*t ^6-46*t1^5-46*t\^4-46*tl^3-46*tw^2-46*t%+1）
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