Indices of primes in sequence defined by A(0) = 31, A(n) = 10*A(n-1) + 81 for n > 0.
A101848
Indices of primes in sequence defined by A(0) = 31, A(n) = 10*A(n-1) + 81 for n > 0.
Terms
- a(0) =0a(1) =16a(2) =18a(3) =28a(4) =42a(5) =118a(6) =172a(7) =948a(8) =1608a(9) =5578a(10) =19678a(11) =34146a(12) =43492a(13) =97798
External references
- oeis: A101848