Number of compositions (ordered partitions) of n into odd divisors of n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =1a(5) =2a(6) =6a(7) =2a(8) =1a(9) =20a(10) =8a(11) =2a(12) =60a(13) =2a(14) =10a(15) =450a(16) =1a(17) =2a(18) =726a(19) =2a(20) =140a(21) =3321a(22) =14a(23) =2a(24) =5896a(25) =572a(26) =16a(27) =26426a(28) =264a(29) =2