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

Terms

a(0) =1a(1) =4a(2) =16a(3) =48a(4) =128a(5) =312a(6) =704a(7) =1504a(8) =3072a(9) =6036a(10) =11488a(11) =21264a(12) =38400a(13) =67864a(14) =117632a(15) =200352a(16) =335872a(17) =554952a(18) =904784a(19) =1457136a(20) =2320128a(21) =3655296a(22) =5702208a(23) =8813472a(24) =13504512a(25) =20523996a(26) =30952544a(27) =46340832a(28) =68901888a(29) =101777112