Indices of primes in sequence defined by A(0) = 81, A(n) = 10*A(n-1) + 31 for n > 0.
A101066
Indices of primes in sequence defined by A(0) = 81, A(n) = 10*A(n-1) + 31 for n > 0.
Terms
- a(0) =25a(1) =35a(2) =37a(3) =59a(4) =79a(5) =91a(6) =173a(7) =485a(8) =626a(9) =998a(10) =1613a(11) =4381a(12) =4897a(13) =8441a(14) =17261a(15) =17801a(16) =35426a(17) =40742
External references
- oeis: A101066