W_{4,66}=1 + alpha*y^22 + (9024701400 - 22*alpha)*y^24 + (67643608032 + 231*alpha)*y^26 + (2427135590880 - 1540*alpha)*y^28 + (29318580472896 + 7315*alpha)*y^30 + (357194656588770 - 26334*alpha)*y^32 + (3152637145738080 + 74613*alpha)*y^34 + (22477507628045184 - 170544*alpha)*y^36 + (124925241630309120 + 319770*alpha)*y^38 + (545242455443801808 - 497420*alpha)*y^40 + (1851836832596836800 + 646646*alpha)*y^42 + (4863026306199297600 - 705432*alpha)*y^44 + (9767915376792693120 + 646646*alpha)*y^46 + (14808054469449641400 - 497420*alpha)*y^48 + (16645272404258317248 + 319770*alpha)*y^50 + (13557331549620904320 - 170544*alpha)*y^52 + (7759187529931918080 + 74613*alpha)*y^54 + (2992842884732222808 - 26334*alpha)*y^56 + (733270122069994080 + 7315*alpha)*y^58 + (104398490020432608 - 1540*alpha)*y^60 + (7452990142678080 + 231*alpha)*y^62 + (199642871187045 - 22*alpha)*y^64 + (837263227104 + alpha)*y^66