a(n) = A047980(2n+1).

Terms

a(0) =1a(1) =24a(2) =38a(3) =184a(4) =368a(5) =668a(6) =634a(7) =512a(8) =1028a(9) =1468a(10) =3382a(11) =4106a(12) =10012a(13) =7628a(14) =11282a(15) =38032a(16) =53630a(17) =37274a(18) =63334a(19) =34108a(20) =102296a(21) =119074a(22) =109474a(23) =117206a(24) =60664a(25) =410942a(26) =204614a(27) =127942a(28) =125618a(29) =595358