Expansion of exp( Sum_{n>=1} -sigma_2(2*n)*x^n/n ) in powers of x.

Terms

a(0) =1a(1) =-5a(2) =2a(3) =15a(4) =12a(5) =-36a(6) =-92a(7) =-17a(8) =167a(9) =358a(10) =283a(11) =-293a(12) =-1321a(13) =-2012a(14) =-1101a(15) =2299a(16) =7296a(17) =10505a(18) =6901a(19) =-7705a(20) =-31240a(21) =-52490a(22) =-51336a(23) =-6032a(24) =91521a(25) =217064a(26) =303776a(27) =250595a(28) =-36282a(29) =-575622