Smallest number using a single digit with multiplicity such that every partial concatenation is prime.
A089335
Smallest number using a single digit with multiplicity such that every partial concatenation is prime.
Terms
- a(0) =2a(1) =3a(2) =3a(3) =3a(4) =3a(5) =77a(6) =1a(7) =333333a(8) =33a(9) =3333a(10) =9a(11) =77777777777a(12) =999999999a(14) =99a(15) =9999a(16) =99a(17) =777777777777
External references
- oeis: A089335