Composite numbers and 1 which yield a prime whenever a 3 is inserted anywhere in them (including at the beginning or end).
A216166
Composite numbers and 1 which yield a prime whenever a 3 is inserted anywhere in them (including at the beginning or end).
Terms
- a(0) =1a(1) =121a(2) =343a(3) =361a(4) =533a(5) =637a(6) =793a(7) =889a(8) =943a(9) =1183a(10) =3013a(11) =3223a(12) =3353a(13) =3403a(14) =3757a(15) =3827a(16) =3893a(17) =4313a(18) =4543a(19) =4963a(20) =8653a(21) =10423a(22) =14257a(23) =20339a(24) =23083a(25) =23419a(26) =30917a(27) =33031a(28) =33101a(29) =33323
External references
- oeis: A216166