a(n) is the smallest n-digit prime which remains prime whenever a 1 is inserted, appended or prepended, or 0 if no such prime exists.
A228148
a(n) is the smallest n-digit prime which remains prime whenever a 1 is inserted, appended or prepended, or 0 if no such prime exists.
Terms
- a(0) =3a(1) =13a(2) =103a(3) =1117a(4) =11119a(5) =114031a(6) =1114693a(7) =11213611a(8) =101116111a(9) =1013251111a(10) =10116171733a(11) =101346411811
External references
- oeis: A228148