E.g.f.: 1/Product_{k>0} (1-x^(2*k-1)/(2*k-1)).

Terms

a(0) =1a(1) =1a(2) =2a(3) =8a(4) =32a(5) =184a(6) =1184a(7) =9008a(8) =74752a(9) =726528a(10) =7583232a(11) =87931392a(12) =1092516864a(13) =14863589376a(14) =215094226944