Expansion of (phi(-q) / phi(-q^5))^2 in powers of q where phi() is a Ramanujan theta function.

Terms

a(0) =1a(1) =-4a(2) =4a(3) =0a(4) =4a(5) =-4a(6) =-16a(7) =16a(8) =4a(9) =12a(10) =-12a(11) =-48a(12) =48a(13) =8a(14) =32a(15) =-32a(16) =-124a(17) =120a(18) =20a(19) =80a(20) =-76a(21) =-288a(22) =272a(23) =48a(24) =176a(25) =-164a(26) =-616a(27) =576a(28) =96a(29) =360