Expansion of exp( Sum_{n>=1} -3*sigma(2n)*x^n/n ) in powers of x.

Terms

a(0) =1a(1) =-9a(2) =30a(3) =-39a(4) =0a(5) =18a(6) =49a(7) =0a(8) =-192a(9) =110a(10) =81a(11) =78a(12) =-130a(13) =0a(14) =-30a(15) =-121a(16) =0a(17) =210a(18) =320a(19) =-270a(20) =0a(21) =-407a(22) =0a(23) =192a(24) =190a(25) =0a(26) =0a(27) =0a(28) =351a(29) =-210