Expansion of Product_{k>0} theta_3(q^(2*k))/theta_3(q^(2*k-1)), where theta_3() is the Jacobi theta function.

A321027

Expansion of Product_{k>0} theta_3(q^(2*k))/theta_3(q^(2*k-1)), where theta_3() is the Jacobi theta function.

Terms

    a(0) =1a(1) =-2a(2) =6a(3) =-14a(4) =28a(5) =-58a(6) =114a(7) =-210a(8) =384a(9) =-684a(10) =1178a(11) =-2010a(12) =3372a(13) =-5538a(14) =9006a(15) =-14466a(16) =22906a(17) =-35954a(18) =55884a(19) =-85946a(20) =131176a(21) =-198622a(22) =298274a(23) =-444958a(24) =659368a(25) =-970544a(26) =1420362a(27) =-2066876a(28) =2990680a(29) =-4305598

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