W_{3,120}=1 + alpha*y^30 + (261792869520 - 30*alpha)*y^33 + (25817030152160 + 435*alpha)*y^36 + (2206243011598080 - 4060*alpha)*y^39 + (130825652486394240 + 27405*alpha)*y^42 + (5612809762417673088 - 142506*alpha)*y^45 + (175296412571121223200 + 593775*alpha)*y^48 + (4016223213579257466240 - 2035800*alpha)*y^51 + (67868355146310115461120 + 5852925*alpha)*y^54 + (849119988307524499949760 - 14307150*alpha)*y^57 + (7882969705335235952872704 + 30045015*alpha)*y^60 + (54343678095173262461802240 - 54627300*alpha)*y^63 + (277988814357219566717271120 + 86493225*alpha)*y^66 + (1052828118567489363251967360 - 119759850*alpha)*y^69 + (2940998734258869894606360000 + 145422675*alpha)*y^72 + (6026510372574451248316638720 - 155117520*alpha)*y^75 + (8992710676827639928253905920 + 145422675*alpha)*y^78 + (9679917353459122424429865440 - 119759850*alpha)*y^81 + (7427460198130322024755753920 + 86493225*alpha)*y^84 + (4002608863954458573348798720 - 54627300*alpha)*y^87 + (1487111607797231811094207872 + 30045015*alpha)*y^90 + (372219109982756445972447360 - 14307150*alpha)*y^93 + (60959736643469146369614000 + 5852925*alpha)*y^96 + (6293059289046900207864000 - 2035800*alpha)*y^99 + (389971756726008705480960 + 593775*alpha)*y^102 + (13580154047777800897728 - 142506*alpha)*y^105 + (242127348895859481600 + 27405*alpha)*y^108 + (1921175681643429120 - 4060*alpha)*y^111 + (5368260223959360 + 435*alpha)*y^114 + (3343797869440 - 30*alpha)*y^117 + (-1208841792 + alpha)*y^120