Expansion of chi(-q^3) / chi^3(-q) in powers of q where chi() is a Ramanujan theta function.

Terms

a(0) =1a(1) =3a(2) =6a(3) =12a(4) =21a(5) =36a(6) =60a(7) =96a(8) =150a(9) =228a(10) =342a(11) =504a(12) =732a(13) =1050a(14) =1488a(15) =2088a(16) =2901a(17) =3996a(18) =5460a(19) =7404a(20) =9972a(21) =13344a(22) =17748a(23) =23472a(24) =30876a(25) =40413a(26) =52644a(27) =68268a(28) =88152a(29) =113364