A014705 Expansion of ((theta_2)^4+(theta_3)^4)/eta(z/2)^4.

1, 28, 134, 568, 1809, 5316, 13990, 34696, 80724, 180068, 384940, 796760, 1598789, 3127360, 5971922, 11170160, 20491033, 36947444, 65553412, 114619248, 197681341, 336670120, 566630192, 943234040