"AGK" (ordered, elements, unlabeled) transform of 1,3,5,7...

Terms

a(0) =1a(1) =3a(2) =11a(3) =23a(4) =71a(5) =187a(6) =459a(7) =1277a(8) =3151a(9) =8143a(10) =20677a(11) =51801a(12) =129419a(13) =320545a(14) =795345a(15) =1932009a(16) =4743273a(17) =11486873a(18) =27621529a(19) =66498519a(20) =158800697a(21) =377809541a(22) =892817603a(23) =2109091339a(24) =4951796685a(25) =11574868127