a(n) is the smallest suffix such that the numbers with k digits "9" prepended are primes for k = 1, 2, ..., n.
A186142
a(n) is the smallest suffix such that the numbers with k digits "9" prepended are primes for k = 1, 2, ..., n.
Terms
- a(0) =7a(1) =7a(2) =29a(3) =907a(4) =32207a(5) =573217a(6) =3136717a(7) =4128253a(8) =2181953771a(9) =2181953771a(10) =2181953771
External references
- oeis: A186142