Near-prime numbers: numbers n such that n-2=prime, n+2=prime, n-4=prime, n+4=prime, n-8=prime, n+8=prime.
A143727
Near-prime numbers: numbers n such that n-2=prime, n+2=prime, n-4=prime, n+4=prime, n-8=prime, n+8=prime.
Terms
- a(0) =15a(1) =105a(2) =16065a(3) =19425a(4) =43785a(5) =1091265a(6) =1615845a(7) =1954365a(8) =2822715a(9) =2839935a(10) =3243345a(11) =3400215a(12) =6005895a(13) =6503595a(14) =7187775a(15) =7641375a(16) =8062005a(17) =8741145a(18) =10526565a(19) =11086845a(20) =11664555a(21) =14520555a(22) =14812875a(23) =14834715a(24) =14856765a(25) =16025835a(26) =16094715a(27) =18916485a(28) =19197255
External references
- oeis: A143727