G.f.（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#34+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^47-
4*t^46-4*t^45-4*t^44-4*t|43-4*t*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*t1^31-
4*t^30-4*t*29-4*t ^28-4*t ^27-4*t^26-4*t^25-4*t1^24-4*t ^23-
4*t^22-4*t^21-4*t^20-4*t*19-4*t*18-4*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*t^2-4*t+1）
