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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） /（1176*t^49-48*t^48-48*t^47-48*t^46-48*t^45-48*t^44-
48*t^43-48*t^42-48*t ^41-48*t ^40-48*t ^39-48*t ^38-48*t^37-
48*t^36-48*t^35-48*t ^34-48*t-33-48*t1^32-48*t\31-48*t/30-
48*t^29-48*t^28-48*t ^27-48*t-26-48*t1^25-48*t\24-48*t/23-
48*t^22-48*t^21-48*t ^20-48*t ^19-48*t ^18-48*t ^17-48*t^16-
48*t^15-48*t*14-48*t^13-48*t1^12-48*t ^11-48*t%10-48*t\9-
48*t^8-48*t^7-48*t^6-48*t ^5-48*t ^4-48*t1^3-48*t-^2-48*t/1）
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