a(n) = Pell(n)*A109041(n) for n>=1, with a(0)=1, where A109041 lists the coefficients in eta(q)^9/eta(q^3)^3.

A209453

a(n) = Pell(n)*A109041(n) for n>=1, with a(0)=1, where A109041 lists the coefficients in eta(q)^9/eta(q^3)^3.

Terms

    a(0) =1a(1) =-9a(2) =54a(3) =-45a(4) =-1404a(5) =6264a(6) =1890a(7) =-76050a(8) =187272a(9) =-8865a(10) =-1540944a(11) =6200280a(12) =-1621620a(13) =-51195330a(14) =109055700a(15) =42125400a(16) =-868685040a(17) =2946297888a(18) =74093670a(19) =-21584605122a(20) =44912353824a(21) =-17376284250a(22) =-302040439920a(24) =249392931480

External references