Expansion of x * (psi(x^4) / phi(x))^2 in powers of x where phi(), psi() are Ramanujan theta functions.

A260145

Expansion of x * (psi(x^4) / phi(x))^2 in powers of x where phi(), psi() are Ramanujan theta functions.

Terms

    a(0) =1a(1) =-4a(2) =12a(3) =-32a(4) =78a(5) =-176a(6) =376a(7) =-768a(8) =1509a(9) =-2872a(10) =5316a(11) =-9600a(12) =16966a(13) =-29408a(14) =50088a(15) =-83968a(16) =138738a(17) =-226196a(18) =364284a(19) =-580032a(20) =913824a(21) =-1425552a(22) =2203368a(23) =-3376128a(24) =5130999a(25) =-7738136a(26) =11585208a(27) =-17225472a(28) =25444278a(29) =-37350816

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