Numbers n (relatively prime to 10) such that the decimal form of the period of 1/n is prime.
A175545
Numbers n (relatively prime to 10) such that the decimal form of the period of 1/n is prime.
Terms
- a(0) =3a(1) =27a(2) =33a(3) =333a(4) =369a(5) =909a(6) =2151a(7) =2439a(8) =2997a(9) =3333a(10) =27027a(11) =33333a(12) =37683a(13) =41841a(14) =76923a(15) =90909a(16) =142857a(17) =194841a(18) =243603a(19) =333333
External references
- oeis: A175545