Fourier coefficients of Eisenstein series of degree 2 and weight 4: a(n) = coefficient of the imprimitive matrix [n, n/2; n/2, n].

A323992

Fourier coefficients of Eisenstein series of degree 2 and weight 4: a(n) = coefficient of the imprimitive matrix [n, n/2; n/2, n].

Terms

    a(0) =13440a(1) =604800a(2) =3642240a(3) =20818560a(4) =44029440a(5) =163900800a(6) =229850880a(7) =677980800a(8) =895238400a(9) =1981324800a(10) =2184053760a(11) =5641829760a(12) =5017447680a(13) =10343289600a(14) =11931978240a(15) =21789747840a(16) =19152806400a(17) =40285728000a(18) =33366117120a(19) =68201602560a(20) =62289588480a(21) =98282419200a(22) =86675097600a(23) =183732796800

External references