Indices of primes in sequence defined by A(0) = 21, A(n) = 10*A(n-1) + 71 for n > 0.
A101969
Indices of primes in sequence defined by A(0) = 21, A(n) = 10*A(n-1) + 71 for n > 0.
Terms
- a(0) =1a(1) =11a(2) =26a(3) =43a(4) =79a(5) =118a(6) =130a(7) =274a(8) =314a(9) =875a(10) =1306a(11) =10894a(12) =17104a(13) =60716
External references
- oeis: A101969