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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） /（136*t^49-16*t^48-16*t^47-16*t ^46-16*t ^45-16*t1^44-16*t ^43
-16*t^42-16*t^41-16*t|40-16*t*39-16*t$38-16*t#37-16*t=36-
16*t^35-16*t^34-16*t|33-16*t*32-16*t`31-16*t` 30-16*t` 29-
16*t^28-16*t^27-16*t|26-16*t*25-16*t`24-16*t` 23-16*t'22-
16*t^21-16*t^20-16*t^19-16*t^18-16*t^17-16*t^16-16*t^15-
16*t^14-16*t^13-16*t^12-16*t^11-16*t^10-16*t ^9-16*t1^8-
16*t^7-16*t^6-16*t|5-16*t*4-16*t$3-16*t#2-16*t+1）
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