-2-Knödel numbers.

Terms

a(0) =4a(1) =6a(2) =8a(3) =10a(4) =12a(5) =24a(6) =28a(7) =30a(8) =70a(9) =88a(10) =130a(11) =238a(12) =510a(13) =754a(14) =868a(15) =910a(16) =1330a(17) =2068a(18) =2590a(19) =2728a(20) =3304a(21) =4002a(22) =5110a(23) =5406a(24) =8554a(25) =8710a(26) =12958a(27) =15748a(28) =18430a(29) =20878