a(n) = A239793(n)/2^(3*n).

Terms

a(0) =1a(1) =3a(2) =5a(3) =21a(4) =45a(5) =11a(6) =91a(7) =45a(8) =17a(9) =1995a(10) =3465a(11) =115a(12) =2925a(13) =189a(14) =145a(15) =341a(16) =1309a(17) =1a(18) =9139a(19) =65a(20) =2255a(21) =148995a(22) =108675a(23) =1645a(24) =270725a(25) =21879a(26) =583a(27) =4389a(28) =4959a(29) =59