Beginning with 2, primes of the form: least multiple of the previous term followed by a 7. Beginning with 2, a(n) is the least prime of the form k*a(n-1)*10 +7.
A112783
Beginning with 2, primes of the form: least multiple of the previous term followed by a 7. Beginning with 2, a(n) is the least prime of the form k*a(n-1)*10 +7.
Terms
- a(0) =2a(1) =47a(2) =947a(3) =18947a(4) =947357a(5) =47367857a(6) =4263107137a(7) =682097141927
External references
- oeis: A112783