G.f.(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)/(136*t^39-
16*t^38-16*t*37-16*t ^36-16*t^35-16*t ^34-16*-
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*t ^8-16*t1^7-16*t^6-16*t%^5-16*t\^4-16*tl^3-
16*t^2-16*t+1)
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