Sum of odd divisors of Bell(n).

Terms

a(0) =1a(1) =1a(2) =1a(3) =6a(4) =24a(5) =14a(6) =240a(7) =878a(8) =1872a(9) =34560a(10) =143840a(11) =542880a(12) =4421376a(13) =27644438a(14) =97250652a(15) =1666163520a(16) =10523628456a(17) =30946448412a(18) =779556556800