Numbers k such that k and k+2 are both primitive practical numbers (A267124).

Terms

a(0) =28a(1) =304a(2) =306a(3) =340a(4) =460a(5) =462a(6) =858a(7) =868a(8) =1482a(9) =1768a(10) =1974a(11) =2440a(12) =2728a(13) =2838a(14) =2860a(15) =3318a(16) =3738a(17) =4134a(18) =4264a(19) =4288a(20) =4420a(21) =4422a(22) =5236a(23) =5694a(24) =6100a(25) =6102a(26) =7590a(27) =8814a(28) =9040a(29) =9042