G.f.: -(19965928069106332*x^34+489798171279888376079*x^33+1568515530398626934189757*x^32
+1201923118922644899253381636*x^31+319484773037311159892883723836*x^30
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+73356195000982758160017114359896868*x^27+1484138820114352635801334681825044684*x^26
+19191788692808490703660674653915451144*x^25+164941551458968180650010639661861246280*x^24
+970151313227497101683537073345847752660*x^23+3991976583864902990566340303048398164780*x^22
+11680122745052823484488408186507477344940*x^21+24585778866734666793074123408421118733940*x^20
+37520146222647700487440846787870090398260*x^19+41691449133897298846292767533121899841620*x^18
+33766101982311209092083008719959710063310*x^17+19889823932719731942142321155421048887930*x^16
+8474730127402927901177931555116686493580*x^15+2588375595571024338702732851372347430580*x^14
+559242017336503478090750612485564415460*x^13+83936500027763001353551704981068881980*x^12
+8540520893550282945816270522535928940*x^11+570259131618871913982268491403459140*x^10
+23920919379593267340680589703856208*x^9+594059731370929610572692967531776*x^8
+8040452390876641955034354014108*x^7+52627984224322614218709754084*x^6+139056195856030776141716484*x^5
+111130724182680971836892*x^4+16453542865372443964*x^3+190024754211072*x^2+50798411*x+1)/(x-1)^37*x^2.