Indices of primes in the sequence defined by A(0) = 49, A(n) = 10*A(n-1) - 81 for n > 0.
A101715
Indices of primes in the sequence defined by A(0) = 49, A(n) = 10*A(n-1) - 81 for n > 0.
Terms
- a(0) =1a(1) =3a(2) =4a(3) =7a(4) =8a(5) =27a(6) =190a(7) =195a(8) =2037a(9) =34413a(10) =39265a(11) =50578a(12) =94285a(13) =108411a(14) =130479a(15) =178090a(16) =185354
External references
- oeis: A101715