a(n) = A105658(n)/k, where k=n if n is odd, else k=n/2.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =1a(10) =1a(11) =1a(12) =11a(13) =1a(14) =1a(15) =13a(16) =55a(17) =1a(18) =1a(19) =1a(20) =1a(21) =1a(22) =175a(23) =325a(24) =13a(25) =253a(26) =1a(27) =1a(28) =1a(29) =1