Expansion of Eisenstein series E_6(q) (alternate convention E_3(q)).

Terms

a(0) =1a(1) =-504a(2) =-16632a(3) =-122976a(4) =-532728a(5) =-1575504a(6) =-4058208a(7) =-8471232a(8) =-17047800a(9) =-29883672a(10) =-51991632a(11) =-81170208a(12) =-129985632a(13) =-187132176a(14) =-279550656a(15) =-384422976a(16) =-545530104a(17) =-715608432a(18) =-986161176a(19) =-1247954400a(20) =-1665307728a(21) =-2066980608a(22) =-2678616864a(23) =-3243917376a(24) =-4159663200