Primes of the form aaaa...aa1 where a is 3, 4, 5, 6 or 7.
A109550
Primes of the form aaaa...aa1 where a is 3, 4, 5, 6 or 7.
Terms
- a(0) =31a(1) =41a(2) =61a(3) =71a(4) =331a(5) =661a(6) =3331a(7) =4441a(8) =6661a(9) =33331a(10) =333331a(11) =3333331a(12) =33333331a(13) =6666666661a(14) =44444444441a(15) =555555555551
External references
- oeis: A109550